Performance
Unformatted Capacity	47.5 GB
Formatted Capacity	36.7 GB
Average Sectors per Track	718 (rounded down)
Actuator Type	Rotary Voice Coil
Tracks	31 310 user
Cylinders	31 310 user
Physical Heads	4
Discs (2.5)	2
Media Type	Thin Film/GMR
Recording Method	PRML
Internal Transfer Rate (Mbps)	609 to 891
Internal Formatted Transfer Rate (MBps)	57 to 86
External Transfer Rate (MBps) Low Voltage Differential (LVD)	80/320 sync
Spindle Speed (RPM)	15 000
Average Latency (ms)	2.0
Buffer Read Look-Ahead Adaptive Multi-Segmented Cache	8 MB
Interface	Ultra-3 SCSI Wide
Bytes Per Track	368k average
Tracks per Inch (TPI)	64 000
Peak (Kbpi)	533
Average Access (ms Read/Write) Drive Level Without Controller Overhead	3.6/3.9
Single Track Seek (ms Read/Write)	0.20/0.40
Max Full Seek (ms Read/Write)	6.5/6.9
MTFB (Power-On Hours)	1 200 000
Interface	Ultra-3 SCSI Wide
Shock (G’s)	Operating (read/write):60 Non-operating:250
Acoustics (Bels typical Sound Power)	3.2
Power Dissipation (watts/BTUs)	7.2/24.6 idle
Loading Zone (cylinders)	Auto Park
IBM at Drive Type	0 or None
Power Requirements
+12V Startup	1.03 amps
+12V Typical	0.26 amps idle
+5V Startup	0.90 amps
+5V Typical	0.81 amps idle
Physical
Height (inches/mm)	1.0/25.4
Width (inches/mm)	4.0/101.6
Depth (inches/mm)	5.75/146.6
Weight (lbs/kg)	1.8/0.8