Chapter 1 21
Hard Disk Drive Interface
Item Specification
Vendor Seagate
Model Name ST9160310AS ST9320320AS ST9500325AS
Capacity (MB) 160 320 500
Bytes per sector 512
Data heads 2 4 4
Drive Format
Disks 1 2 2
Spindle speed (RPM) 5,400
Performance Specifications
Buffer size 8 MB
Interface SATA
Internal transfer rate
(Mbits/sec max)
830 1175
I/O data transfer rate
(Mbytes/sec max)
300
DC Power Requirements
Voltage tolerance 5V(DC) +/- 5%
Item Specifications
Vendor & Model Name
Toshiba MK5055/2555GSX Toshiba MK3255/1655GSX
Capacity 500/250GB 320/160GB
Bytes per sector 512
Data heads 4/2 4/2
Drive Format
Disks 2/1 2/1
Spindle speed (RPM) 5400
Performance Specifications
Buffer size 8MB
Interface SATA
Internal transfer rate
(Mbits/sec, max)
363 ~ 952 typical
I/O data transfer rate 3Gbits/s
DC Power Requirements
Voltage +5.0V ± 5%.