Acer 5737Z - page 30

20 Chapter 1
Hard Disk Drive Interface
Item Specification
V endor & Model
Name
Segate
ST9250827AS Segate ST9160310AS Toshiba MK3252GSX
Hitachi
5K350-320
5K350-250
WD
WD1600BEVT
Capacity (GB) 250 160 320 320, 250 160
Bytes per sector 512 512 512 512 512
Data heads 4 2 4 4, 4 or 3 2
Drive Format
Disks 2 1 2 2, 2 1
Spindle speed
(RPM) 5400 5400 5400 5400 5400
Performance Specifications
Buffer size 8 MB 8 MB 8 MB 8 MB 8 MB
Interface SATA SATA SATA SATA SATA
Internal transfer
rate (Mbits/sec,
max)
778 352 400 ~ 794
typical 674 ~ 729 850 Mbits/s maximum
I/O data transfer
rate
(Mbytes/sec
max)
300 150 300 300 300 maximum
DC Power Requirements
Voltage
tolerance 5V ±5% 5V ±5% 5V ±5% 5V ±5% 5V ±5%