2.0Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the ST3200822AS, ST3160827AS, ST3160023AS, ST3160021AS, ST3120827AS, ST3120026AS, ST3120022AS, ST380817AS, ST380013AS, ST380011AS, ST340111AS and ST340014AS models.
2.1Specification summary table
The specifications listed in this table are for quick reference. For details on specification measurement or defi- nition, see the appropriate section of this manual.
Table 2: | Drive specifications |
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| ST3160827AS | ST3120827AS | ST380817AS |
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Drive specification | ST3200822AS | ST3160023AS | ST3120026AS | ST380013AS | ST340111AS | |
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| ST3160021AS | ST3120022AS | ST380011AS | ST340014AS |
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Formatted Gbytes (512 bytes/sector)* | 200 | 160 | 120 | 80 | 40 | |
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Guaranteed sectors | 390,721,968 | 312,581,808 | 234,441,648 | 156,301,488 | 78,165,360 | |
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Bytes per sector | 512 |
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Default sectors per track | 63 |
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Default read/write heads | 16 |
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Default cylinders | 16,383 |
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Physical read/write heads | 4 | 4 | 3 | 2 | 1 | |
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Discs |
| 2 | 2 | 2 | 1 | 1 |
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Recording density in BPI (bits/inch max) | 671,500 | 595,000 |
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Track density TPI (tracks/inch max) | 98,000 | 94,600 |
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Areal density (Gbits/inch2 max) | 68.5 | 56.3 |
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Spindle speed (RPM) | 7,200 |
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Internal transfer rate (Mbytes/sec max) | 85.4 |
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Sustained transfer rate OD (Mbytes/sec) | 58 |
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I/O data transfer rate (Mbytes/sec max) | 150 |
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| SATA 1.0, SATA II |
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ATA | PIO modes |
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Multiword DMA modes |
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| Ultra DMA modes |
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| 8 Mbytes: ST3200822AS, ST3160827AS, ST3160023AS, ST3120827AS, | ||||
Cache buffer |
| ST3120026AS, ST380817AS, ST380013AS and ST340111AS | ||||
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| 2 Mbytes: ST3160021AS, ST3120022AS, ST380011AS, and ST340014AS | ||||
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Height (max) |
| 26.035 mm (1.028 inches) |
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Width (max) |
| 101.6 mm (4.000 inches) |
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Length (max) |
| 146.99 mm (5.787 inches) |
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Weight (typical) | 635 grams (1.4 lb) |
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Barracuda 7200.7 Serial ATA Product Manual, Rev. N | 3 |
