24 Chapter 1
Hard Disk Drive Interface (cont)
Item Specifications
Vendor &
Model Name
WD
WD800BEVT
WD
WD1200BEVT
WD
WD1600BEVT
WD
WD2500BEVT
WD
WD3200BEVT
Capacity
(MB) 80 120 160 250 320
Bytes per
sector 512
Data heads 1 2 2 3 4
Drive Format
Disks11 122
Spindle
speed (RPM) 5400
Performance Specifications
Buffer size 8MB
Interface SATA
Internal
transfer rate
(Mbits/sec,
max)
3GB/s maximum
I/O data
transfer rate
(Mbytes/sec
max)
850 Mbits/s maximum
DC Power Requirements
Voltage +5.0V ± 5%.