Hard Disk Drive Interface
Item |
| Specification |
|
|
|
| |
Vendor | Seagate Momentus 5400.4 SATA |
| |
Model Name | ST9250827AS | ST9160827AS | ST9120817AS |
|
|
|
|
Capacity (MB) | 250 | 160 | 120 |
|
|
|
|
Bytes per sector |
| 512 |
|
|
|
|
|
Data heads | 4 | 3 | 2 |
|
|
|
|
Drive Format |
|
|
|
|
|
|
|
Disks | 2 | 2 | 1 |
|
|
|
|
Spindle speed (RPM) |
| 5,400 |
|
|
|
|
|
Performance Specifications |
|
|
|
|
|
|
|
Buffer size |
| 8MB |
|
|
|
|
|
Interface |
| SATA |
|
|
|
|
|
Internal transfer rate (Mbits/ |
| 778 |
|
sec max) |
|
| |
|
|
| |
|
|
|
|
Sustained transfer rate |
| 58 |
|
(Mbytes/sec max) |
|
| |
|
|
| |
|
|
|
|
I/O data transfer rate |
| 300 |
|
(Mbytes/sec max) |
|
| |
|
|
| |
|
|
|
|
DC Power Requirements |
|
|
|
|
|
|
|
Voltage tolerance |
| 5V(DC) +/- 5% |
|
|
|
|
|
Item |
|
| Specification |
| ||
|
|
|
|
|
| |
Vendor |
| Seagate Momentus 5400.5 SATA |
|
|
| |
|
|
|
|
|
|
|
Model Name |
| ST9320320AS | ST9250320AS |
| ST9160310AS | ST9120310AS |
|
|
|
|
|
|
|
Capacity (MB) |
| 320 | 250 |
| 160 | 120 |
|
|
|
|
|
|
|
Bytes per sector |
|
|
| 512 |
| |
|
|
|
|
|
|
|
Data heads |
| 4 | 4 or 3 |
| 2 | 2 |
|
|
|
|
|
|
|
Drive Format |
|
|
|
|
| |
|
|
|
|
|
| |
Disks |
| 2 or 1 | 2 |
| 1 | 1 |
|
|
|
|
|
|
|
Spindle speed (RPM) |
|
|
| 5,400 |
| |
|
|
|
|
|
| |
Performance Specifications |
|
|
|
| ||
|
|
|
|
|
| |
Buffer size |
|
|
| 8 MB |
| |
|
|
|
|
|
| |
Interface |
|
|
| SATA |
| |
|
|
|
|
|
| |
Internal transfer rate |
|
|
| 352 |
| |
(Mbits/sec max) |
|
|
|
|
|
|
|
|
|
|
|
| |
I/O data transfer rate |
|
|
| 150 |
| |
(Mbytes/sec max) |
|
|
|
|
|
|
|
|
|
|
|
|
|
DC Power Requirements |
|
|
|
|
| |
|
|
|
|
| ||
Voltage tolerance |
|
| 5V(DC) +/- 5% |
| ||
|
|
|
|
|
|
|
18 | Chapter 1 |
