Specifications
| Data Storage Physical: |
| Per drive, formatted* |
320GB* |
| Data Heads |
4 |
| Number of Disks |
2 |
| Interface |
SATA 3GB/s (Serial ATA Revision 2.6 / ATA-8) |
| Sector Size |
512 Bytes |
| Max. Areal Density |
247.1 GB/sq. inch |
| Performance: |
| Rotational Speed |
7,200 RPM |
| Average Latency |
4.16 (avg) |
| Media Transfer Rate |
1,020 Mbits/sec. (max) |
| Interface Transfer Rate |
300 MB/sec. (max) |
| Data Buffer |
16MB** |
| Seek Time: |
| Track-to-track |
1ms |
| Average |
10.5ms (Read), 12ms (Write) |
| Full Stroke |
19ms |
| Power Requirements: |
| Voltage |
+5V(+/-5%) |
| Spin-up |
5.5watts (typ) |
| Seek |
2.2watts (typ) |
| Read/Write |
1.9watts (typ) |
| Active Idle*** |
1.2watts (typ) |
| Low Power Idle*** |
0.9watts (typ) |
| Standby*** |
0.18watts (typ) |
| Sleep*** |
0.13watts (typ) |
| Physical & Environmental Specs |
| Dimensions/Weight: |
| Height |
0.37" (9.5mm) |
| Width |
2.75" (69.85mm) |
| Depth |
3.94" (100mm) |
| Weight: |
4.02oz (114g) |
| Environmental (Operating): |
| Shock (half sine wave) |
300G, 2ms (2,940 m/s²) |
| Vibration (sweeping sine wave) |
1.0G, 5-500 Hz (9.8 m/s²) |
| Ambient Temperature |
41° - 131°F (5 to 55°C) |
| Relative Humidity |
8% to 90% RH (non-condensing) |
| Altitude |
-300 to 3,000 Meters |
| Environmental (Non-Operating): |
| Shock (half sine wave) |
900G, 1ms (8,820 m/s²) |
| Vibration (sweeping sine wave) |
5.0G, 15-500 Hz (49 m/s²) |
| Ambient Temperature |
-40° - 140°F (-40 to 60°C) |
| Relative Humidity |
8% to 90% RH (non-condensing) |
| Altitude |
-300 to 12,000 Meters |
| Acoustics (A-Weighted Sound Power) & Reliability |
| Acoustics (A-Weighted Sound Power): |
| Idle Mode (Average) |
2.5 |
| Seek Mode (Average) |
2.8 |
| Reliability: |
| Load/Unload Cycles |
600,000 |
| Warranty |
|
Specifications are subject to change
*One Gigabyte (1 GB) means 109 = 1,000,000,000 bytes using powers of 10. A computer operating system, however, reports storage capacity using powers of 2 for the definition of 1 GB = 230 = 1,073,741,824 bytes, and therefore shows less storage capacity. Available storage capacity will also be less if the computer includes one or more pre-installed operating systems, pre-installed software applications, or media content. Actual formatted capacity may vary.
**
Buffer space available to the user.
***
S-ATA power management features applied.
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