DRIVE SERIES SPECIFICATIONS
DRIVE SPECIFICATIONS - MODEL 4221W
(Wide, Single-Ended Interface)
Formatted Capacity
Per Drive 2,050 MB
Bytes per Sector 512
Sectors per Track Variable
Cylinders 4,150
Performance
Data Rate
Avg. Seek Time (including settling time) 8.9 msec
Avg. Rotational Latency 4.17 msec
Rotational Speed 7200 rpm +/- 0.5%
Data Transfer Rate at Interface
Synchronous up to 20 MB/sec
Asynchronous up to 10 MB/sec
Internal Data Rate 49 to 83 Mbits/sec
MTBF (power-on hours) 650,000
Positioner Fully balanced rotary voice coil
Parking Automatic park and lock
General Functional Specifications
Interface Fast SCSI-2
Supports Full Common Command Set Yes
Drivers/Receivers Wide/Single-Ended
Power Requirements
+12V +/-5% (average) 0.5 A
+12V +/-5% (max during start-up) 1.7 A
+5V +/-5% (average) 0.9 A
Power Dissipation, typical, idling 10.25 Watts
Power Dissipation, typical, seeking 11.5 Watts
(Board Layout and Jumper Options)
Drive Warranty Information