Hitachi 40GB Deskstar Hard Drive (ATA Ultra100) - HDS722540VLAT20

Feature	Description
Configuration
Interface	ATA Ultra-100
Capacity	40 GB
Sector Size	512 bytes
Recording Zones	30
Data Heads (Physical)	1
Data Disks	1
Areal Density	62 Gbits/sq. inch maximum
Recording Density	689 KBPI maximum
Track density	87 KTPI
Performance
Data Buffer	2 MB
Rotational Speed	7 200 RPM
Latency Average	4.17 ms
Media Transfer Rate	757 Mbits/sec maximum
Interface Transfer Rate	100 MB/sec maximum
Sustained Data Rate	61.4 to 29.7 MB/sec (zone 0-29)
Seek Time (Read Typical)	Average: 8.5/8.8 ms Track to track: 1.1 Full track: 15.1 ms
Reliability	Error rate (non-recoverable): 1 in 1014 Start/Stops: 50 000 (at 40° C)
Acoustics	Idle: 2.6 Bels
Power
Requirement	+5 VDC (± 5%) +12 VDC (+10%/ -8%)
Dissipation	Startup current: 1.72 A (+12V) max. / 0.68 A (+5V) max. Idle: 5.0 watts
Physical
Dimensions (H × W × D)	25.4 × 101.6 × 146 mm
Weight	640 g max.
Environmental
Ambient Temperature	Operating: 5° to 55° Non-operating: -40° to 65° C
Relative Humidity (Non-Condensing)	Operating: 8% to 90% Non-operating: 5% to 95%
Max. Wet Bulb (Non-Condensing)	Operating: 29.4° C Non-operating: 35° C
Shock (Half Sine Wave 2 ms)	Operating: 55 G Non-operating: 350 G
Vibration (Random RMS)	Operating: 0.67 G for horizontal 0.56 G for vertical Non-operating: 1.04 G rms (XYZ)