Drive Specifications; Specification Summary Tables - Seagate Constellation ES.1 Serial ATA Product Manual

3.0

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:
ST2000NM0011 ST2000NM0031
ST1000NM0011 ST1000NM0031
ST500NM0011 ST500NM0031
3.1

Specification summary tables

The specifications listed in the following tables are for quick reference. For details on specification measure-
ment or definition, see the appropriate section of this manual.
Table 1: Drive specifications summary
Drive specification
Formatted (512 bytes/sector)*
Guaranteed sectors
Heads
Discs
Bytes per sector
Default sectors per track
Default read/write heads
Default cylinders
Recording density, KBPI (Kb/in max)
Track density, KTPI (ktracks/in avg.)
2
Areal density, (Gb/in avg)
Spindle speed (RPM)
Internal data transfer rate
(Mb/s max)
Sustained data transfer rate OD
(MB/s max)
I/O data-transfer rate
(MB/s max)
ATA data-transfer modes supported
Cache buffer
Weight: (maximum)
4
ST2000NM0051
ST1000NM0051
ST500NM0051
ST2000NM0011
ST2000NM0031
ST2000NM0051
2TB
3,907,029,168
8
4
512
63
16
16,383
1523
237
324
7200
1300
147
600
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
64MB
710g (1.565 lb)
Constellation ES.1 Serial ATA Product Manual, Rev. B
ST1000NM0011
ST1000NM0031
ST1000NM0051
1TB
1,953,525,168
4
2
640g (1.411 lb)
ST500NM0011
ST500NM0031
ST500NM0051
500GB
976,773,168
2
1
610g (1.345 lb)