- Please note that Apple, Compaq, Cisco, Dell, IBM, HP, Maxtor, Fujitsu, Seagate, Sun or any item that is not a 3D memory product once processed can not be cancelled or returned for credit. There may be a restocking fee of minimum $ 25 or upto 25% on certain products which differs from product to product.
- This item can be shipped in 24 hours or depending on the availability. Please confirm with our customer service at 1-800-821-3354 if you need the item to be shipped the same day.
- Please note that most of the major manufacturers (e.g. HP, IBM, Compaq, Dell) part numbers have established corresponding spare part numbers (spare P/N#), or field replacement part numbers (fru #'s) for their items. When you receive the part it may display this Spare P/N# or FRU # on it. You can easily reference this part number as a valid replacement part for your ordered item at any of the manufacturer websites. If you need any assistance in this regard please call our Sales Department at 1-800-821-3354 Option 1.
- This part # has a 30 days limited DOA exchange warranty for replacement only with the same part. Some drives may have 90 days warranty which you can confirm. The product may have other warranties like manufacturer, service, or extended warranty that you can confirm with the sales department.
- All hardware sold are bulk equipment with no drivers and cd included. If you need a driver or CD installation for a particular item please call to confirm that we have it.
- Our online shipping calculator is based to calculate shipping for memory, hard drive and other items that are less than 5 lbs. It may not calculate the correct shipping cost of items that are more than 5 lbs. Please do call us to confirm before you place the order for items that are heavier in shipping. If you do place the order by mistake you may receive an email or call from our customer service department with the exact shipping charges. Some of the items that come in this category are servers, racks, motherboards.
Last Updated: 4/25/2008
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Description:
Western Digital’s WD Protégé hard drives are designed for the value segment of the desktop PC market. Ideal for entry-level PCs, this member of the WD family offers the same quality, reliability, and service you’ve come to expect with all Western Digital hard drives.
Data Protection Enhancements
Data Lifeguard ™ is an expanded set of data protection tools that includes shock protection, an environmental protection system, and embedded error detection and repair features that automatically find, isolate, and repair problem areas that may develop over the extended use of the hard drive. With these enhanced data reliability features, the drive can perform more accurate monitoring and error repair and deliver exceptional data security.
Data Lifeguard Tools ™ is a set of software utilities that work in conjunction with the embedded Data Lifeguard features to make hard drive installation, drive management diagnostics, and repair simple and worry-free.
Data Lifeguard Lifeline ™ enables quick customer notification in the event of critical issues that could affect your hard drive or data. Lifeline allows delivery of important improvements and upgrades to Western Digital products and is completely private; information is never sent to Western Digital.
Shock Guard™ provides outstanding improvements in shock and vibration protection for the newest WD Caviar drives. Shock Guard allows instantaneous data protection at high shock values to achieve leading shock specifications.
Feature and Benefits :
Bare Drive
Specifications Back to Top
Physical Specifications
Model Number WD400EB
Formatted Capacity 40,020 MB
User Sectors per Drive 78,165,360
Interface 40-pin EIDE
Actuator Type Voice Coil
Bytes per Sector (STD) 512
Dedicated Landing Zone Yes
Actuator Latch/Auto Park Yes
Performance Specifications
Transfer Rate (Buffer to Host) 100 MB/s (Mode 5 Ultra ATA)
66.6 MB/s (Mode 4 Ultra ATA)
33.3 MB/s (Mode 2 Ultra ATA)
16.6 MB/s (Mode 2 DMA)
16.6 MB/s (Mode 4 PIO)
Average Seek (Read) 12.8 ms (typical)
Track to Track Seek 2.0 ms (typical)
Full Stroke Seek (Read) 28.5 ms (typical)
Average Latency 5.35 ms
Rotational Speed 5400 RPM
Read Cache Adaptive
Write Cache Yes
Buffer Size 2MB
Drive Ready Time <6 sec average
Start/Stop Cycles 40,000 min
Master/Slave Support Yes
LBA Support Yes
IORDY Support Yes
Error Rate (Non-recoverable) <1 in 1014 bits read
Recommended Setup 16383 x 16 x 63
Enviromental Specifications
Shock Operating: (read) 65G (2 ms)
Operating (write/read) 20G (2 ms)
Non-Operating 300G (2 ms)
Half sine wave measured in 2 ms duration, measured without isolation.
Vibration Operating:
5-20 Hz, 0.012 in. (dbl amp)
20-300 Hz, 0.25G (0 to peak)
Non-operating:
5-20 Hz, 0.195 in. (dbl amp)
20-500 Hz, 4.0G (0 to peak)
Operating Temperature & Humidity Temperature 5° C to 55° C
Humidity 5-85% RH non-condensing
Thermal Gradient 20° C /hour max
Non-Operating Temperature & Humidity Temperature -40° C to 65° C
Humidity 5-95% RH non-condensing
Thermal Gradient 30° C/hour
Acoustics (typical) Idle Mode 5 32 dBA average
Power Requirements (average) Mode 12V (±10%) 5V (±5%) Power
Read/Write 163 mA 480 mA 4.36W
Idle 150 mA 470 mA 4.15W
Standby 25 mA 118 mA 0.89W
Sleep 24 mA 63 mA 0.62W
Physical Dimensions
Height 1.028 in. (26.1 mm) max
Length 5.787 in. (147.0 mm) max
Width 4.0 in. (101.6 mm) ± 0.01
Weight 0.947 lb. (430.0 g) max
Specifications subject to change without notice.
Warranty :
Warranty Length: One year manufacturers warranty.
Coverage: Covers repair or replacement of the product.
Provider: Western Digital.
Contact: Western Digital Customer Service at (949) 672-7000
Technical Support: Western Digital Technical Support at 1-800-275-4932 for EIDE hard drives, 1-888-932-7247 for SCSI hard drives.
Service Location: Western Digital provides warranty service at a mail-in location.
Service Time: Please allow 2-3 weeks for warranty service.
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We're sorry, no technical specification is available for this item at this time.
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