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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:
Sector Size
4096N
512E
512N
2.1
Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measurement 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
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 (MiB/s
max)
I/O data-transfer rate (MB/s max)
ATA data-transfer modes supported
Cache buffer
Weight: (maximum)
Average latency
Power-on to ready (sec) (max)
Standby to ready (sec) (max)
Startup current (typical) 12V (peak)
Voltage tolerance (including noise)
Ambient temperature
Seagate Enterprise Capacity 2.5 HDD v3 SATA Product Manual, Rev. D
Standard models
ST2000NX0243
ST1000NX0303
ST2000NX0253
ST1000NX0313
ST2000NX0403
ST1000NX0423
ST2000NX0243
ST2000NX0283
488,378,646
4096
198g (0.437 lb)
1.85A (optional configuration through Smart Command Transport)
Self-Encrypting Drive
(SED) models
ST2000NX0283
ST1000NX0343
ST2000NX0303
ST1000NX0353
ST2000NX0253
ST2000NX0303
ST2000NX0403
2TB
3,907,029,168
10
5
512
1889
315
585
7200
2160
130 (136 MB/s max)
600
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
128MB (129,536KB)
4.16ms
20
20
2.0A
5V ±5%
12V ±5%
5° to 55°C (operating/tested)
–40° to 70°C (nonoperating)
ST1000NX0313
ST1000NX0303
ST1000NX0353
ST1000NX0343
ST1000NX0423
1TB
244,190,646
1,953,525,168
5
3
4096
190g (0.419 lb)
512
8
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