WD Caviar Blue WD4000AAKB - hard drive - 400 GB - ATA-100

Description: This Western WD Caviar SE16 is a 400GB, standard hard disk drive.Compared to other standard hard drives on the market, it is relatively inexpensive at around $100.Its burst transfer rate (which is how fast the drive moves data already in its cache into your computer) is 100 MBps.This is a 7200 rpm drive and has a 16MB cache.

Pros: Has a 400GB capacity, which is considerably larger than some similarly priced hard drives.By way of comparison, the average cost of a product with this large a capacity is $260.Also, this hard drive has a 16MB buffer, which is considerably larger than some similarly priced hard drives.In fact, the typical cost of a product with this large a buffer is $245.

Cons: None noted, given available product data.

Suitability: Suitable for replacement or upgrade on many desktop PCs or workstations.

Value: In view of its relatively inexpensive price, this hard drive has great features for the money.In fact, you would typically pay around 15% more to get a standard hard drive having a comparable data transfer rate.

CNET's Product Briefs are generated by a software tool that combines product specifications with knowledge of our editorial experts. They do not reflect hands-on assessment or labs testing. For more information about how we create Product Briefs, contact us.

• Manufacturer: Western Digital Corp.
• Part Number: WD4000AAKB

• General

• Device Type Hard drive - Internal hard drive
• Width 4 in
• Depth 5.8 in
• Height 1 in
• Weight 1.4 lbs

• Hard Drive

• Form Factor 3.5" x 1/3H
• Capacity 400 GB
• Interface type ATA-100
• Data Transfer Rate 100 MBps
• Spindle speed 7200 rpm
• Buffer size 16 MB

• Performance

• Drive Transfer Rate 100 MBps (external)
• Seek Time 8.9 ms (average)
• Track-to-Track Seek Time 2 ms
• Average Latency 5.5 ms

• Storage Controller

• Type None

• Reliability

• Start / Stop Cycles 50,000

• Storage Controller (2nd)

• Type None

• Expansion / Connectivity

• Interfaces 1 x ATA-100 - 40 pin IDC
• Compatible Bays 1 x Internal - 3.5" x 1/3H
• Compatible Slots x None

• Manufacturer Warranty

• Service & support type 3 years warranty
• Service & Support Details Limited warranty - 3 years

• Environmental Parameters

• Min operating temperature 32 ?F
• Max operating temperature 140 ?F
• Operating humidity range 5 - 95%
• Vibration Tolerance 0.75 g @ 20-300 Hz
• Sound emission 28 dBA

Western Digital Corp.

Manufacturer profile

• Website: http://www.wdc.com/