Product Details
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![]() | Momentus Laptop Hard Drives | What the experts are saying... | |||||||||
| The world's most feature-rich 2.5-inch drive for laptop upgrades and external enclosures. The Momentus drive family offers innovative options, capacities to 750GB, two performance speeds and significant feature options. The Seagate Momentus drives are perfect for any standard laptop and meet your specific upgrade needs whether they are:
Why choose the Seagate Momentus?
*Not available in all models or countries. Requires TCG-compliant host or controller support. TM: The FIPS logo is a certification mark of NIST, which does not imply product endorsement by NIST, the U.S., or Canadian governments. |
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| The world's most feature-rich 2.5-inch drive for laptop upgrades and external enclosures now available up to 750GB! | ![]() | ||
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![]() Seagate® Momentus® 5400 & 7200 RPM drives with capacities up to 750GB | ![]() |
| Momentus 5400 Drives | Momentus 7200 Drives | |||||||||
| Feature Options | 640GB1 | 500GB1 | 320GB1 | 250GB1 | 160GB1 | 750GB1 | 500GB1 | 320GB1 | 250GB1 | 160GB1 |
| Standard Models | ST9640320AS | ST9500325AS | ST9320325AS | ST9250315AS | ST9160314AS | ST9750420AS | ST9500420AS | ST9320423AS | ST9250410AS | ST9160412AS |
| Free-Fall Sensor Models | ST9500325ASG2 | ST9500420ASG2 | ST9250410ASG2 | |||||||
| FDE Models | ST9500327AS | ST9250317AS | ST9500421AS | ST9250411AS | ||||||
| FDE FIPS 140-2 Models | ST9500422AS | ST9250412AS | ||||||||
| Interface | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ | SATA 3Gb/s NCQ |
| Cache (MB) | 8 | 8 | 8 | 8 | 8 | 16 | 16 | 16 | 16 | 16 |
| Configuration | ||||||||||
| Bytes per Sector | 512 | 512 | 512 | 512 | 512 | 40963 | 512 | 512 | 512 | 512 |
| Reliability/Data Integrity | ||||||||||
| Head-Rest Method | Quiet Step™ Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load | Quiet Step Ramp Load |
| Load/Unload Cycles | >600,000 | >600,000 | >600,000 | >600,000 | >600,000 | >600,000 | >600,000 | >600,000 | >600,000 | >600,000 |
| Nonrecoverable Read Errors per Bits Read | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 | 1 per 10E14 |
| Annualized Failure Rate (AFR) | 0.48% | 0.48% | 0.48% | 0.48% | 0.48% | 0.50% | 0.50% | 0.50% | 0.50% | 0.50% |
| Power Management | ||||||||||
| Power (W) Seek, Typical Idle, Typical | 1.3 0.68 | 1.54 0.81 | 1.54 0.81 | 1.54 0.81 | 1.54 0.81 | 1.5 0.7 | 1.554 0.67 | 1.554 0.67 | 1.554 0.67 | 1.554 0.67 |
| Environmental | ||||||||||
| Temperature (°C) Operating Nonoperating | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 | 0 to 60 -40 to 70 |
| Shock (Gs) Operating: 2ms Nonoperating: 1ms | 350 1000 | 350 1000 | 350 1000 | 350 1000 | 350 1000 | 350 1000 | 350 1000 | 350 1000 | 350 1000 | 350 1000 |
| Acoustics (bels— sound power) Idle, Typical Seek, Typical | 2.3 2.6 | 2.4 2.6 | 2.4 2.6 | 2.4 2.6 | 2.4 2.6 | 2.3 2.5 | 2.3 2.5 | 2.3 2.5 | 2.3 2.5 | 2.3 2.5 |
| Physical | ||||||||||
| Height (in/mm) | 0.374/9.5 | 0.374/9.5 | 0.374/9.5 | 0.374/9.5 | 0.374/9.5 | 0.370/9.5 | 0.370/9.5 | 0.370/9.5 | 0.370/9.5 | 0.370/9.5 |
| Width (in/mm) | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 | 2.75/69.85 |
| Depth (in/mm) | 3.957/100.5 | 3.957/100.5 | 3.957/100.5 | 3.957/100.5 | 3.957/100.5 | 3.951/100.35 | 3.951/100.35 | 3.951/100.35 | 3.951/100.35 | 3.951/100.35 |
| Weight (lb/g) | 0.218/98.8 | 0.218/98.8 | 0.218/98.8 | 0.218/98.8 | 0.218/98.8 | 0.254/115 | 0.238/110 | 0.238/110 | 0.227/105 | 0.227/105 |