Western Digital Corp. WD400LB hard drive specifications
WD Caviar WD400LB - hard drive - 40 GB - ATA-100
The latest generation of Western Digital's award-winning WD Caviar Enhanced IDE (EIDE) hard drive family features new firmware innovations to achieve 80 GB per platter. Spinning at 7200 RPM and offering capacities as large as 250 GB, the latest WD Caviar hard drives combine the high performance and increased areal density required by today's capacity-hungry applications.
Recommended software for Western Digital Corp. WD400LB status and S.M.A.R.T. monitoring is ActiveSMART www.ariolic.com
Manufacturer
HDD Part Number
WD400LB
Hard drive health monitoring software
ActiveSMART by Ariolic Software. Click to download ActiveSMART
General
Device Type
Hard drive - Internal hard drive
Width
4 in
Depth
5.8 in
Height
1 in
Weight
1.3 lbs
Hard Drive
Form Factor
Capacity
40 GB
Interface Type
ATA-100
Buffer Size
2 MB
Features
Shock Guard, Data Lifeguard
Performance
Drive Transfer Rate
100 MBps
Internal Data Rate
50 MBps
Seek Time
8.9 ms (average) / 21 ms (max)
Track-to-Track Seek Time
2 ms
Average Latency
4.2 ms
Spindle Speed
7200 rpm
Reliability
Storage Hard Drive / Non-Recoverable Errors
1 per 10^14
Start / Stop Cycles
40,000
Storage Controller
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
Power
Power Device
None
Environmental Parameters
Min Operating Temperature
41 �F
Max Operating Temperature
131 �F
Humidity Range Operating
5 - 85%
Vibration Tolerance
0.25 g @ 5-500 Hz (operating) / 4 g @ 20-500 Hz (non-operating)
Sound Emission
35 dBA
Max Altitude Operating
9840 ft
0.1093