here are specs from dell site:
source:
dell.com....
Form Factor: 2.5" x 1/8H
Form Factor: 2.5" x 1/8H internal
Depth: 10 cm
Features: Fluid Dynamic Bearing (FDB) motor
Height: 1 cm
Weight: 98 g
Width: 7 cm
Average Latency: 5.55 ms
Average Seek Time: 12 ms
Bay(s) Required: 1 x internal - 2.5" x 1/8H
Bytes per Sector: 512
Cache / Buffer Size: 16 MB
Compliant Standards: S.M.A.R.T.
Data Transfer Rate: 100 MBps
Data Transfer Rate: 100 MBps (external)
Device Type: Hard drive portable
Dimensions (WxDxH): 7 cm x 10 cm x 1 cm
Enclosure Type: Internal
Formatted Capacity: 20 GB
Interface Type: DMA/ATA-100 (Ultra)
Max Operating Temperature: 55 °C
Mean Time Before Failure: 300,000 hour(s)
Min Operating Temperature: 5 °C
Non-Recoverable Errors: 1 per 10^13
Port(s) / Connector(s) Required: 1 x storage DMA/ATA-100 (Ultra) 1
Recoverable Errors ( Non-Recoverable Err: ( 1 per 10^13 )
Seek Errors: 1 per 10^6
Spindle Speed: 5400 rpm
Track-to-Track Seek Time: 3 ms
Type: Hard drive portable
Cylinders: 16383
Heads: 16
Heads: 16 / 2
Sectors per Track: 63
Compatibility: PC
Seek Time: 12 ms (average) / 24 ms (max)
Shock Tolerance: 200 g @ 2ms half-sine pulse (operating) / 800 g @ 1ms (non-operating)
Vibration Tolerance: 1 g @ 5-500 Hz (operating)
Heads (Physical): 2