| Category | Mechanical HDD | Solid-State Disk | |
| Environmental specifications | Operating temperature range | +5� to +55�C | -40� to +85�C |
| Nonoperating temperature range | -40� to +70�C | -55� to +95�C | |
| Operating shock | 20 to 125 g | 1,500 g | |
| Operating vibration | 1 g (22 to 500 Hz) | 16 g (20 to 2,000 Hz) | |
| Humidity | 5% to 90% RH | 5% to 95% RH | |
| Operating altitude | Up to 15,000 ft | Up to 80,000 ft | |
| Acoustics, idle/ready | 29 dBA | 0 dBA | |
| Environmental standards | MIL-STD-810 | Noncompliant | Compliant |
| NEBS: GR-63-CORE & GR-1089-CORE ETS 300 019-2-0 | Noncompliant | Compliant | |
| Reliability | Actual/fielded MTBF | 70,000 operating hours | 1.2 M hours |
| Endurance | Write/erase cycles | NA | > 5 million |
| Performance | Average seek | 3.0 to 7.0 ms | 0.02 to 0.05 ms |
| Average latency | 2.0 to5.0 ms | N/A | |
| Sustained read rate | Up to 96 Mbytes/s | 8.0 to 45.0 Mbytes/s | |
| Sustained write rate | 20.0 to 45.0 Mbytes/s | 8.0 to 40.0 Mbytes/s | |
| Power | Power idle | 0.8 to 5.0 W | 0.035 to 3.0 W |
| Power read/write | 5.0 to 10.0 W | 0.0325 to 5.0 W | |
| Security | Delete disk data in emergency without retrieving the data | Noncompliant, must degauss or physically destroy the drive | Sanitize feature complies with DoD NISPOM 5220.22-M, NSA 130-2, Air Force AFSSI 5020, Army 380-19, Navy NAVSO P-5239-26 and IREC (IRIG) 106, and other standards |
| Capacity | 3.5-in. form factor 2.5-in. form factor |
40 to 750 Gbytes 40 to 80 Gbytes |
128 Mbytes to 352 Gbytes 128 Mbytes to 128 Gbytes |
| Cost | $70 to $400 |
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