Seagate ST4000DX001 User Manual
14
Desktop SSHD Product Manual, Rev. B
Drive Specifications
2.4
Recording and interface technology
2.5
Physical characteristics
Interface
SATA
Recording method
TGMR
Recording density (kFCI)
1807
Track density (ktracks/inch avg)
1TB and 2TB
352
4TB
340
Areal density (Gb/in
2
)
625
Spindle speed (RPM)
1TB and 2TB
7200 ± 0.2%
4TB
5900 ± 0.2%
Internal data transfer rate (Mb/s max)
1TB and 2TB
2147
4TB
1813
Maximum sustained data transfer rate, OD read (MB/s)
1TB and 2TB
210
4TB
180
Average data rate, read/write (MB/s)
1TB and 2TB
156
4TB
146
I/O data-transfer rate (MB/s max)
600
Maximum height
4TB and 2TB
26.1mm / 1.028 in
1TB
20.17mm / 0.7825 in
Maximum width (all models)
101.6mm / 4.0 in ( ± 0.010 in)
Maximum length (all models)
146.99mm / 5.787 in
Typical weight
4TB
610g / 1.345 lb
2TB
535g / 1.18 lb
1TB
400g / 0.88 lb
Cache buffer
64MB (64,768kb)