Seagate BarraCuda Product Manual, Rev. B
6
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 following drive models:
2.1
Specification summary tables
The specifications listed in
are for quick reference. For details on specification measurement or definition, refer to
the appropriate section of this manual.
ST4000DM005
Table 1
Drive specifications summary for 4TB model
Drive Specification*
ST4000DM005
Formatted capacity (512 bytes/sector)**
4000GB (4TB)
Guaranteed sectors
7,814,037,168
Heads
6
Disks
3
Bytes per sector (4K physical emulated at 512-byte sectors)
4096
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density (max)
2054kFCI
Track density (avg)
390ktracks/in
Areal density (avg)
811Gb/in2
Internal data transfer rate (max)
2111Mb/s
Average data rate, read/write (MB/s)
161MB/s
Maximum sustained data rate, OD read (MB/s)
190MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
I/O data-transfer rate (max)
600MB/s
Cache buffer
64MB
Height (max)
26.1mm / 1.028 in
Width (max)
101.6mm /4.0 in (+ 0.010 in)
Length (max)
146.99mm / 5.787 in
Weight (typical)
635g / 1.400 lb
Average latency
5.1ms
Power-on to ready (max)
15.0s
Standby to ready (max)
15.0s
Average seek, read (typical)
Average seek, write (typical)
<12.0ms typical
<12.0ms typical
Startup current (typical) 12V
2.0A
Voltage tolerance (including noise)
5V ±5%
12V ±10%
Non-Operating (Ambient °C)
–40° to 70°
Operating ambient temperature (min °C)
0°
Operating temperature (drive case max °C)
60°
†
Temperature gradient
20°C per hour max (operating)
30°C per hour max (non-operating)
