Seagate ST39173N/W/WD/LW/WC/LC, ST34573N/W/WD/LW/WC/LC manual Drive characteristics, Rpm

16	Barracuda 9LP Installation Guide, Rev. E
Table 1.	Drive characteristics
Interface		UltraSCSI [1]
Capacity		Formatted [2]	Max. data blocks [2]
ST39173		9.105 Gbyte [2]	10F59C7h [2]
ST34573		4.551 Gbyte [2]	87A25Bh [2]
Recording
Cylinders (user)		7,501
Read/write data heads
ST39173		10
ST34573		5
Access time [3]
Average read		7.4 msec
Average write		8.2 msec
Disk rotation
RPM		7,200 r/min
Average latency		4.17 msec
Internal transfer rate (variable with zone)
ST39173		120–190 Mbits/sec
ST34573		120–190 Mbits/sec
Maximum synchronous SCSI transfer rate
N model		20 Mbytes/sec
W/WD/WC/DC models		40 Mbytes/sec
LW/LC		80 Mbytes/sec

[1]Can also be operated according to SCSI-1 and SCSI-2 protocols. Referred to also as “SCSI Fast-20.”

[2]Standard factory units are formatted 512 data bytes per sector with spare tracks reserved for reallocating bad sectors.

[3]Includes controller overhead.