Seagate Exos 7E8 SATA Product Manual, Rev. A 7
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 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
Standard 4KN
models
Self-Encrypting
4KN (SED) models
SED FIPS 140-2
4KN models
ST8000NM0045 ST8000NM0115 ST8000NM0145
ST6000NM0055 ST6000NM0165
Standard 512E
models
Self-Encrypting
512E (SED) models
SED FIPS 140-2
512E models
ST8000NM0055 ST8000NM0105 ST8000NM0155
ST6000NM0065 ST6000NM0155
Drive specification
ST8000NM0045, ST8000NM0055,
ST8000NM0105, ST8000NM0115,
ST8000NM0145, ST8000NM0155
ST6000NM0055, ST6000NM0065,
ST6000NM0155, ST6000NM0165
Formatted (512 bytes/sector)* 8TB 6TB
Guaranteed sectors (see Section 2.2)
Heads 12
Discs 6
Bytes per logical sector 512
Bytes per physical sector 4096
Recording density, KBPI (Kb/in max) 2226
Track density, KTPI (ktracks/in avg.) 375
Areal density, (Gb/in
2
avg) 802
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2546
Maximum Sustained data transfer rate OD
(MiB/s)
237 (249 MB/s)
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) 780g (1.72 lb)
Average latency 4.16ms
Power-on to ready (sec) (typ/max) 23/30
Standby to ready (sec) (typ/max) 23/30
Startup current (typical) 12V (peak)
2.6A
2.0A (optional configuration through Smart Command Transport)
Voltage tolerance (including noise)
5V +10/-5%
12V ±10%
Non-Operating ambient temperature (°C)
–40 to 70
Operating ambient temperature (min °C) 5
Operating temperature (Drive case max °C) 60
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