Table 1: | Drive specifications for 500, 400 and 320 GB models |
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| ST9500325AS |
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| ST9320325AS |
Drive specification | ST9500325ASG |
| ST9400326AS | ST9320325ASG | |
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Average seek, read (msec typical) | 14 |
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30 |
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Startup current, +5V (max) | 1 amp |
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Seek power (typical) | 1.54 watts |
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Read/write power (typical) | Read: 1.40 watts; Write: 1.78 watts |
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Idle mode, low power (typical) | 0.67 watts |
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Standby mode |
| 0.20 watts (typical)*** |
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Sleep mode |
| 0.20 watts (typical)*** |
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Voltage tolerance (including noise) | +5V ± 5% |
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Ambient temperature | 0° to 60°C (operating), |
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Temperature gradient | 20°C (operating) |
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(°C per hour max) | 35°C (nonoperating) |
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Relative humidity | 5% to 95% (operating) |
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| 5% to 95% (nonoperating) |
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Relative humidity gradient | 30% per hour max |
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Wet bulb temperature | 37.7 (operating) |
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(°C max) |
| 40 (nonoperating) |
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Altitude, operating |
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Altitude, nonoperating |
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(meters below mean sea level, max) |
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Shock, operating (Gs max at 2 msec) | 350 |
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Shock, nonoperating (Gs max at 2 msec) | 800 |
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Shock, nonoperating (Gs max at 1 msec) | 1,000 |
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Shock, nonoperating (Gs max at 0.5 msec) | 600 |
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Vibration, operating | 1.0 G (0 to peak, |
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Vibration, nonoperating | 5.0 Gs (0 to peak, |
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Drive acoustics, sound power (bels) |
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Idle** |
| 2.4 (typical) |
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| 2.6 (max) |
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Performance seek | 2.6 (typical) |
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| 2.7 (max) |
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Nonrecoverable read errors | 1 per 1014 bits read |
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Annualized Failure Rate (AFR) | 0.48% |
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Load/Unload (U/UL) cycles |
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25°C, 50% relative humidity | 600,000 |
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| 20,000 hard power on/off cycles |
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32°C, 80% relative humidity | 600,000 |
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5°C, 80% relative humidity | 20,000 hard power on/off cycles |
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5°C, 10% relative humidity |
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55°C, 16% relative humidity |
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Warranty |
| To determine the warranty for a specific drive, use a web browser to access the following | |||
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| web page: support.seagate.com/customer/warranty_validation.jsp | |||
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| You will be asked to provide the drive serial number, model number (or part number) and | |||
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| country of purchase. After submitting this information, the system will display the war- | |||
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| ranty information for your drive. |
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Supports Hotplug operation per Serial ATA | Yes (requires COMRESET from host after a hotplug event) |
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Revision 2.6 specification |
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see notes after Table 3.
4 | Momentus 5400.6 SATA Product Manual, Rev. E |
