WD Raptor
Encyclopedia
The Western Digital Raptor (often marketed as WD Raptor) is a series of high performance hard disk drives produced by Western Digital
Western Digital
Western Digital Corporation is one of the largest computer hard disk drive manufacturers in the world. It has a long history in the electronics industry as an integrated circuit maker and a storage products company. Western Digital was founded on April 23, 1970 by Alvin B...

. The drive currently occupies a niche
Niche market
A niche market is the subset of the market on which a specific product is focusing; therefore the market niche defines the specific product features aimed at satisfying specific market needs, as well as the price range, production quality and the demographics that is intended to impact...

 in the enthusiast, workstation
Workstation
A workstation is a high-end microcomputer designed for technical or scientific applications. Intended primarily to be used by one person at a time, they are commonly connected to a local area network and run multi-user operating systems...

 and small-server market. Traditionally, the majority of servers used hard drives featuring a SCSI
SCSI
Small Computer System Interface is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols, and electrical and optical interfaces. SCSI is most commonly used for hard disks and tape drives, but it...

 interface because of their advantages in both performance and reliability over consumer-level ATA
AT Attachment
Parallel ATA , originally ATA, is an interface standard for the connection of storage devices such as hard disks, solid-state drives, floppy drives, and optical disc drives in computers. The standard is maintained by X3/INCITS committee...

 drives.

Although pitched as an "enterprise-class drive", it won favour with the PC gaming
Personal computer game
A PC game, also known as a computer game, is a video game played on a personal computer, rather than on a video game console or arcade machine...

 and enthusiast community because the drive was capable of speeds usually found only on more expensive SCSI drives. Adopting the SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 interface meant that it could be used easily on all modern motherboard
Motherboard
In personal computers, a motherboard is the central printed circuit board in many modern computers and holds many of the crucial components of the system, providing connectors for other peripherals. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple...

s with no separate (and often expensive) controller
Disk controller
The disk controller is the circuit which enables the CPU to communicate with a hard disk, floppy disk or other kind of disk drive.Early disk controllers were identified by their storage methods and data encoding. They were typically implemented on a separate controller card...

 card. Also, integration was made easier still by the inclusion of a standard 4-pin Molex power connector
Molex connector
Molex connector is the vernacular term for a two-piece pin and socket interconnection, most frequently disk drive connectors. Pioneered by Molex Connector Company, the two-piece design became an early electronic standard. Molex developed and patented the first examples of this connector style in...

 in addition to the standard SATA power port.

Despite having been in production since early 2003, there is no direct competition in the same market.

More recently, Western Digital acknowledged the primary consumer of its Raptor brand drives by releasing a revision of its flagship 150 GB drive. In keeping with the PC case modding
Case modding
Case modification is the modification of a computer chassis , or a video game console chassis. Modifying a computer case in any non-standard way is considered a case mod...

 trend of stylizing, the drive was given a Perspex
Acrylic glass
Poly is a transparent thermoplastic, often used as a light or shatter-resistant alternative to glass. It is sometimes called acrylic glass. Chemically, it is the synthetic polymer of methyl methacrylate...

 window to match the internals of computer case
Computer case
A computer case is the enclosure that contains most of the components of a computer...

s. This allows the user to see the drive's inner workings while it is in operation.

On April 21, 2008, Western Digital announced the next generation of its 10,000 RPM SATA Raptor hard drive series. The new drives, called WD VelociRaptor, feature 300 GB capacity and 2.5-inch platters enclosed in the IcePack, a 3.5-inch mounting frame with a built-in heat sink
Heat sink
A heat sink is a term for a component or assembly that transfers heat generated within a solid material to a fluid medium, such as air or a liquid. Examples of heat sinks are the heat exchangers used in refrigeration and air conditioning systems and the radiator in a car...

. Western Digital claims the new drives are 35 percent faster than the previous generation Raptors.

On April 6, 2010, Western Digital updated the VelociRaptor series. The drives now contain up to three platters and a 600GB total capacity, upgraded from the dual-platter 300GB design of the prior flagship model. Western Digital claims the new models are 15 percent faster than the previous generation VelociRaptors.

WD360(EL36)

In 2003, Western Digital released the first incarnation of the Raptor series: the WD360GD.
It featured a capacity of 37 GB on a single platter, a Serial ATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 interface, and was the first ATA drive to operate at a spindle speed of 10,000 revolutions per minute
Revolutions per minute
Revolutions per minute is a measure of the frequency of a rotation. It annotates the number of full rotations completed in one minute around a fixed axis...

. Like many early SATA drives, the Raptor was not a "real" SATA drive because it was really a PATA drive that used an 88i8030C interface bridge chip from Marvell. However, this fact did not significantly hamper the Raptor's performance. WD360GD Raptors do not use the 3.3 V Serial ATA power line. There is no need to use a SATA power connector as it will not be fully utilized.http://wdc.custhelp.com/cgi-bin/wdc.cfg/php/enduser/std_adp.php?p_faqid=872&p_created=1039465570

As is usually the case for hard drives featuring a faster spindle speed, the Raptor outperformed other ATA drives and in some situations was even able to reach the performance of contemporary 10,000 rpm SCSI
SCSI
Small Computer System Interface is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols, and electrical and optical interfaces. SCSI is most commonly used for hard disks and tape drives, but it...

 drives. SCSI
SCSI
Small Computer System Interface is a set of standards for physically connecting and transferring data between computers and peripheral devices. The SCSI standards define commands, protocols, and electrical and optical interfaces. SCSI is most commonly used for hard disks and tape drives, but it...

 drives still outperformed the Raptor in multi-user scenarios, but for high-end home computers it fared very well. For enthusiasts' systems, the Raptor also had the key advantages of low noise and temperature levels compared to similarly performing drives.

All WD360GD drives with Part Number WD360GD-00FNA0 (December 2003) and earlier cannot accept SATA latch cables, as the SATA data connector does not have the required rails. So, only normal cables can be plugged into these connectors.

WD360GD Raptors with the Marvell 88i8030-TBC PATA to SATA bridge chip, such as WD360GD-00FNA0 (December 2003) and earlier, are limited to UDMA 5 transfers. In Linux, "applying bridge limits" is displayed and then it allows transfers up to UDMA\100. In Microsoft Windows, they are reported as UDMA 6, but give a burst rate of 104 MB/s, while WD360GD with the 88i8030-TBC1 chip are reported as UDMA 6 and give a burst rate of 122 MB/s, close their theoretical limit of UDMA 6. Those Raptors limited at UDMA 5 were bought for SATA I 150 MB/s support, but they only support the legacy PATA UDMA 5 at 100 MB/s.

Like its larger brother the WD740GD, the WD360GD was revised in 2006 and released with the designation WD360ADFD - incorporating twice as much on-board cache (16 MB vs 8 MB), at least one side of a single platter that offers twice the areal density, and enabling NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

.

WD740(EL74)

The second generation Raptor was introduced in early 2004, featuring two platters for 74 GB of storage space. Unlike its predecessor, the WD740GD didn't use ball bearings to support the spinning disks, but rather used fluid dynamic bearings
Fluid bearing
Fluid bearings are bearings which support the bearing's loads solely on a thin layer of liquid or gas.They can be broadly classified as fluid dynamic bearings or hydrostatic bearings. Hydrostatic bearings are externally pressurized fluid bearings, where the fluid is usually oil, water or air, and...

. These allowed the new Raptor to operate at a noise level comparable to the quieter 7,200 rpm drives.

Another advantage the WD740GD had over its predecessor was Tagged Command Queuing
Tagged Command Queuing
Tagged Command Queuing is a technology built into certain ATA and SCSI hard drives. It allows the operating system to send multiple read and write requests to a hard drive. ATA TCQ is not identical in function to the more efficient native command queuing used by SATA drives...

, a feature that had previously been available only in SCSI drives. Command queuing resulted in a notable increase in the WD740GD's multi-user performance—a key discipline where its predecessor failed compared to SCSI drives. However, enabling command queuing on the WD740GD resulted in a performance decrease in single-user scenarios. It is worth noting that , only a few SATA controllers can fully support command queuing. This drive became immensely popular in high-end gaming systems because of these features.

In 2006 Western Digital
Western Digital
Western Digital Corporation is one of the largest computer hard disk drive manufacturers in the world. It has a long history in the electronics industry as an integrated circuit maker and a storage products company. Western Digital was founded on April 23, 1970 by Alvin B...

 revised the WD740GD specification and released the WD740ADFD, ostensibly the same drive but with 16 MB of on-board cache, and a larger single platter (one 75 GB platter vs two 37 GB platters). Support for TCQ
Tagged Command Queuing
Tagged Command Queuing is a technology built into certain ATA and SCSI hard drives. It allows the operating system to send multiple read and write requests to a hard drive. ATA TCQ is not identical in function to the more efficient native command queuing used by SATA drives...

 (rarely supported on SATA RAID controllers) was dropped in favor of NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

, and at the same time replacing the SATA-to-PATA bridge controller chip with a native SATA controller. Unfortunately one of the major enhancements of WD740ADFD, the NCQ, is implemented so badly in the WD740ADFD-00NLR1 that it has been added to the Linux libata drive blacklist. The WD740GD did not apply because it uses TCQ and not NCQ. In order to deal with it, NCQ is disabled Link to the NCQ-Bug in the Kernel Bug Tracker. In TCQ capable controllers, the WD740GD is possibly faster than its successor as some of the WD740ADFDs' gains are lost. The WD740ADFD has also caused problems in some motherboards and their manufacturers had to release BIOS
BIOS
In IBM PC compatible computers, the basic input/output system , also known as the System BIOS or ROM BIOS , is a de facto standard defining a firmware interface....

 updates.

WD1500(EL150)

The third generation Raptor was released by Western Digital in January 2006. It features two 75 GB platters (for a total of 150 GB) and a more advanced system of Native Command Queuing
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

. At the same time, the Raptor X was released. It has identical specifications to the standard Raptor,
but it has the addition of a clear polycarbonate
Polycarbonate
PolycarbonatePhysical PropertiesDensity 1.20–1.22 g/cm3Abbe number 34.0Refractive index 1.584–1.586FlammabilityV0-V2Limiting oxygen index25–27%Water absorption – Equilibrium0.16–0.35%Water absorption – over 24 hours0.1%...

 window in the drive cover, making the movements of the disks and magnetic heads visible. This unique feature is likely to be popular with case modders
Case modding
Case modification is the modification of a computer chassis , or a video game console chassis. Modifying a computer case in any non-standard way is considered a case mod...

. Like the regular Raptor, the Raptor X has a MTBF rating of 1.2 million hours, or 137 years. Both drives are covered by a five-year warranty. While this drive uses the NCQ feature of SATA 2, it lacks support for the increased bandwidth of SATA 2.

WD3000(VR150M)

The fourth generation Raptor was announced by Western Digital in April 2008. The new drive is being sold under the VelociRaptor name.
As well as increasing the capacity to 300 GB (split over two 150 GB platters), the form factor is follows:
  • GLFS models - 2.5" in a 3.5" IcePack frame (serving as a heatsink)
  • HLFS models - 2.5" in a 3.5" redesigned IcePack with proper SATA connector position (see below)
  • BLFS models - 2.5" bare drives (incompatible with notebooks)


Earlier GLFS models have been criticised for being incompatible with 3.5" SATA hot swap bays due to the position of the connectors; however, a new revision (HLFS models) has been released which remedies this problem. Furthermore, TLER has been enabled by default on HLFS models.

Western Digital later released a 2.5 inch Velociraptor (BLFS models) which is nearly identical to the 3.5 inch version, but without the IcePack heat sink. These drives are designed for use in blade server
Blade server
A blade server is a stripped down server computer with a modular design optimized to minimize the use of physical space and energy. Whereas a standard rack-mount server can function with a power cord and network cable, blade servers have many components removed to save space, minimize power...

s and are normally unsuitable for laptops because of their power requirements and 15 mm thickness. Of course, TLER is also enabled by default on BLFS models.

A severe issue with the 4th generation of raptor drives was faulty firmware, which caused the drive to report TLER timeouts after roughly 50 days of continuous usage (precisely: 49.71 days counted in milliseconds, which corresponds to overflow of a 32bit number). The bug has been present in all models of the shipped drives - from their introduction up to late 2009. WDC has never admitted the existence of the bug, or officially released the firmware update. The firmware was leaked by WDC technician and is still easily available through upload sites). The bug was of minor issue for desktop users, but prolonged usage in raid setups could result in mass drive dropouts after mentioned 49.71 days causing maintenance problems and potential data loss.

WD6000(VR200M)

The fifth generation Raptor (or 2nd generation VelociRaptor) drive was announced in April 2010. Besides increasing the total capacity to 600 GB, the SATA interface speed had been increased to 6 Gbit/s. The drives are sold either in the same IcePak mounting frame as the previous generation, or as bare drives (intended for blade servers). While the drive width of 2.5" may entice users to try to install a VelociRaptor drive in a laptop, this is not possible. Not only are the drives a thicker-than-usual 15mm high, but they require both +12V and +5V power that most laptops cannot provide. Standard laptop hard drives typically only require +5V.

Models

Model no. Gen. Released Capacity Cache Interface Feature set Notes Product Page
WD360GD 1 2003 36 GB 8 MB Parallel ATA
AT Attachment
Parallel ATA , originally ATA, is an interface standard for the connection of storage devices such as hard disks, solid-state drives, floppy drives, and optical disc drives in computers. The standard is maintained by X3/INCITS committee...

 to Serial ATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 bridge
Specifications
WD740GD 2 2004 74 GB 8 MB Parallel ATA
AT Attachment
Parallel ATA , originally ATA, is an interface standard for the connection of storage devices such as hard disks, solid-state drives, floppy drives, and optical disc drives in computers. The standard is maintained by X3/INCITS committee...

 to Serial ATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 bridge
TCQ
Tagged Command Queuing
Tagged Command Queuing is a technology built into certain ATA and SCSI hard drives. It allows the operating system to send multiple read and write requests to a hard drive. ATA TCQ is not identical in function to the more efficient native command queuing used by SATA drives...

 

Specifications
WD360ADFD 3 2006 36 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 

Specifications
WD740ADFD 3 2006 74 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 

Specifications
WD1500ADFD 3 2006 150 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
Specifications
WD1500AHFD 3 2006 150 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
Raptor X variant Specifications
WD740HLFS 4 2008 74 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor TBA
WD1500BLFS 4 2008 150 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD1500HLFS 4 2008 150 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD3000BLFS 4 2008 300 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD3000GLFS 4 2008 300 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD3000HLFS 4 2008 300 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD4500BLHX 5 2010 450 GB 32 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 6 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD4500HLHX 5 2010 450 GB 32 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 6 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD6000BLHX 5 2010 600 GB 32 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 6 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD6000HLHX 5 2010 600 GB 32 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 6 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD1500HLHX 5 2011 150 GB 32 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 6 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
WD3000HLHX 5 2011 300 GB 32 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 6 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
VelociRaptor Official site
Special models
WD800GD 2 2004 80 GB 8 MB Parallel ATA
AT Attachment
Parallel ATA , originally ATA, is an interface standard for the connection of storage devices such as hard disks, solid-state drives, floppy drives, and optical disc drives in computers. The standard is maintained by X3/INCITS committee...

 to Serial ATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 bridge
TCQ
Tagged Command Queuing
Tagged Command Queuing is a technology built into certain ATA and SCSI hard drives. It allows the operating system to send multiple read and write requests to a hard drive. ATA TCQ is not identical in function to the more efficient native command queuing used by SATA drives...

 

Specifications
WD800ADFD 3 2006 80 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
Initially HP
Hewlett-Packard
Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...

/Dell
Dell
Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...

-exclusive; now retailed
Official site
WD800ADFS 3 2006 80 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
Initially HP/Dell-exclusive; now retailed Official site
WD1600ADFS 3 2006 160 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
Initially HP/Dell-exclusive; now retailed Official site
WD800HLFS 4 2008 80 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
Initially HP
Hewlett-Packard
Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...

/Dell
Dell
Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...

-exclusive; now retailed
Official site
WD1600HLFS 4 2008 160 GB 16 MB Native SATA
Serial ATA
Serial ATA is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives...

 3 Gbit/s
NCQ
Native Command Queuing
Native Command Queuing is a technology designed to increase performance of SATA hard disks under certain conditions by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed...

 
HP
Hewlett-Packard
Hewlett-Packard Company or HP is an American multinational information technology corporation headquartered in Palo Alto, California, USA that provides products, technologies, softwares, solutions and services to consumers, small- and medium-sized businesses and large enterprises, including...

/Dell
Dell
Dell, Inc. is an American multinational information technology corporation based in 1 Dell Way, Round Rock, Texas, United States, that develops, sells and supports computers and related products and services. Bearing the name of its founder, Michael Dell, the company is one of the largest...

-exclusive
Official site

External links

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