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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 following drive models:
Standard models | Seagate In(SED) models |
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ST3000NC002 | ST3000NC000 |
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ST2000NC001 | ST2000NC000 |
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ST1000NC001 | ST1000NC000 |
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2.1Specification summary tables
The specifications listed in Table 1.
For details on specification measurement or definition, refer to the appropriate section of this manual.
Table 1 Drive specifications summary for 3TB, 2TB and 1TB models
Drive Specification* | ST3000NC002 | ST2000NC001 | ST1000NC001 | |
ST3000NC000 | ST2000NC000 | ST1000NC000 | ||
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Formatted capacity (512 bytes/sector)* | 3000GB (3TB) | 2000GB (2TB) | 1000GB (1TB) | |
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Guaranteed sectors | 5,860,533,168 | 3,907,029,168 | 1,953,525,168; | |
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Heads | 6 | 4 | 2 | |
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Disks | 3 | 2 | 1 | |
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Bytes per sector |
| 4096 (512 byte emulation) |
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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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Recording density, KBPI (Kb/in max) |
| 1807 |
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Track density, KTPI (ktracks/in avg.) |
| 340 |
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Areal density, (Gb/in2 avg) |
| 625 |
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Spindle speed (RPM) |
| 7200 |
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Internal data transfer rate (Mb/s max) |
| 2147 |
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Sustained data transfer rate OD (MB/s) |
| 150 to 180 |
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I/O |
| 600 |
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| PIO modes |
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ATA |
| Multiword DMA modes |
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| Ultra DMA modes |
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Cache buffer |
| 64MB |
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Height (max) | 26.1mm / 1.028 in | 20.17mm / 0.7825 in | ||
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Width (max) |
| 101.85mm /4.010 in |
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Length (max) |
| 147.00mm / 5.787 in |
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Weight (typical) | 626g (1.38 lb) | 535g (1.18 lb) | 400g (0.88 lb) | |
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Average latency |
| 4.16ms |
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15.0 | 10.0 | 7.0 | ||
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Standby to ready (sec max) | 15.0 | 10.0 | 7.0 | |
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| 0.5 read |
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| 0.8 write |
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Average seek, read (ms typical) |
| 9.5 |
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Average seek, write (ms typical) |
| 10.5 |
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Startup current (typical) 12V (peak) |
| 2.8A |
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2.0A (optional configuration through Smart Command Transport) | ||||
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Voltage tolerance (including noise) |
| 5V: ± 5% |
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| 12V: ± 10% |
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Constellation CS Serial ATA Product Manual, Rev. C | 4 |