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Constellation CS Serial ATA Product Manual, Rev. C 4
www.seagate.com
2.0 Drive 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:
2.1 Specification summary tables
The specifications listed in Table 1.
For details on specification measurement or definition, refer to the appropriate section of this manual.
Standard models Seagate In(SED) models
ST3000NC002 ST3000NC000
ST2000NC001 ST2000NC000
ST1000NC001 ST1000NC000
Table 1 Drive specifications summary for 3TB, 2TB and 1TB models
Drive Specification*
ST3000NC002
ST3000NC000
ST2000NC001
ST2000NC000
ST1000NC001
ST1000NC000
Formatted capacity (512 bytes/sector)* 3000GB (3TB) 2000GB (2TB) 1000GB (1TB)
Guaranteed sectors 5,860,533,168 3,907,029,168 1,953,525,168;
Heads 6 4 2
Disks 3 2 1
Bytes per sector 4096 (512 byte emulation)
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (Kb/in max) 1807
Track density, KTPI (ktracks/in avg.) 340
Areal density, (Gb/in2 avg) 625
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2147
Sustained data transfer rate OD (MB/s) 150 to 180
I/O data-transfer rate MB/s max) 600
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 64MB
Height (max) 26.1mm / 1.028 in 20.17mm / 0.7825 in
Width (max) 101.85mm /4.010 in
Length (max) 147.00mm / 5.787 in
Weight (typical) 626g (1.38 lb) 535g (1.18 lb) 400g (0.88 lb)
Average latency 4.16ms
Power-on to ready (sec max) 15.0 10.0 7.0
Standby to ready (sec max) 15.0 10.0 7.0
Track-to-track seek time (ms typical)
0.5 read
0.8 write
Average seek, read (ms typical)
Average seek, write (ms typical)
9.5
10.5
Startup current (typical) 12V (peak)
2.8A
2.0A (optional configuration through Smart Command Transport)
Voltage tolerance (including noise)
5V: ± 5%
12V: ± 10%