Seagate Barracuda ST3320820A IDE / ATA / PATA Hard Drive
Capacity: 320GB
Spindle Speed: 7,200RPM
Interface Type: IDE / ATA (3.5″)
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 78
Average Seek Time (read/write ms): 11 / 12
Electrical Interface Speed: EIDE / Ultra ATA/100 – 100MBps
On-Board Cache: 8MB
- Broad range of capacities, from 200 GB to 750 GB, the highest in the industry
- Available interfaces: SATA 3Gb/s, SATA 1.5Gb/s or Parallel ATA/100
- Perpendicular recording technology for maximum drive capacity and reliability
- 8- and 16-MB cache buffer options
- Ultra-fast performance
- Superb reliability
- Whisper-quiet operation
- Enhanced G-Force Protection against handling damage
- 78 MB/s maximum sustained data transfer rate
- Clean Sweep calibration and Directed Offline scan diagnostics
- RoHS (restriction of hazardous substances) compliant
| Specifications |
| Model number |
ST3320820A |
| Model Name |
Barracuda 7200.10 |
| Formatted Capacity |
320 Gbytes |
| Guaranteed Sectors |
625,142,448 |
| Rotational Speed |
7,200 rpm |
| Default Buffer (cache) Size |
8 Mbytes |
| Performance |
| External (I/O) Transfer Rate (max) |
100 MBytes/sec |
| Average Seek Time (Read / Write) |
11 / 12 |
| Average Latency |
4.16 msec |
| Physical |
| Form Factor(width) |
3.5-inch |
| Form Factor(height) |
1-inch |
| Height |
26.1 mm |
| Width |
101.6 mm |
| Length |
147 mm |
| Weight |
0.635 kg |
| Electrical |
| Maximum start current |
2.80 |
| Environmental |
| Operating Temperature (max) |
55 deg C |
| Operating Temperature (min) |
5 deg C |
| Nonoperating Temperature (max) |
70 deg C |
| Nonoperating Temperature (min) |
-40 deg C |
| Acoustical |
| Acoustics, Idle (sound power, typ) |
2.8 Bels |
| Reliability |
| MTBF |
700,000 hours |
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