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18 Chapter 1
Hard Disk Drive Interface
Item Specification
Vendor & Model Name HGST:
HTS542512K9SA00
HTS542525K9SA00
HTS542516K9SA00
SEAGATE:
ST9120817AS
ST9160827AS
ST9250827AS
Capacity (GB) 120
160
250
320
Bytes per sector 512
Data heads 2
4 for Toshiba and HGST 4
Drive Format
Disks 1
Spindle speed (RPM) 5400 RPM
Performance Specifications
Buffer size 8M
Interface SATA
Max. media transfer rate
(disk-buffer, Mbytes/s)
100, 150
Data transfer rate (host~buffer, Mbytes/s)
Ultra DMA mode-5 100 MB/Sec.
DC Power Requirements
Voltage tolerance 5V(DC) +/- 5%