Seagate ST12000NM000J, Product Manual, Page: 8 / 57

Seagate Exos X18 SATA Product Manual, Rev. B 7
www.seagate.com Drive specifications
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 Exos X18 SATA drive
models.
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 2 Drive specifications summary
Drive specification ST18000NM000J,
ST18000NM001J
ST16000NM000J,
ST16000NM001J
ST14000NM000J,
ST14000NM001J
ST12000NM000J,
ST12000NM001J
Formatted (512 bytes/sector)* 18TB 16TB 14TB 12TB
Guaranteed sectors (see Section 2.2 )
Heads 18 16 14 12
Disks 9 9 7 7
Bytes per logical sector 512
Bytes per physical sector 4096
Recording density, KBPI (Kb/in max) 2470
Track density, KTPI (ktracks/in avg.) 482
Areal density, (Gb/in
2
avg) 1146
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2899
Sustained data transfer rate OD (MiB/s max) 258 (270 MB/s max)
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 256MB (262,144KB)
Weight: (maximum) 670g (1.477 lb) 650g (1.433 lb)
Average latency 4.16ms
Power-on to ready (sec) (typ/max) 25/30
Standby to ready (sec) (typ/max) 25/30
Startup current (typical) 12V (peak) 2.6A
2.0A (optional configuration through Smart Command Transport)
Voltage tolerance (including noise) 5V ± 5%
12V ± 10%
Operating temperature
†
5° to 60°C (Drive Reported Temperature)
Non-Operating temperature –40° to 70°C (Ambient Temperature, see sections 2.6.1 and 2.14 )