Drive Specifications; Specification Summary Tables - Seagate BARRACUDA ST31000524AS Product Manual

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:
ST31000524AS
ST3750525AS

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 for 1000 and 750 models
Drive Specification
Formatted capacity (512 bytes/sector)*
Guaranteed sectors
Heads
Disks
Bytes per sector
Default sectors per track
Default read/write heads
Default cylinders
Recording density (max)
Track density (avg)
Areal density (avg)
Spindle speed
Internal data transfer rate (max)
Sustained data transfer rate OD (max)
I/O data-transfer rate (max)
ATA data-transfer modes supported
Cache buffer
Height (max.)
Width (max.)
Length (max.)
Weight (typical)
Average latency
Power-on to ready (max.)
Standby to ready (max.)
Track-to-track seek time (typical)
Average seek, read (typical)
Average seek, write (typical)
Barracuda SATA Product Manual, Rev. B
ST3500413AS
ST3320413AS
ST31000524AS
1000GB
1,953,525,168
4
2
512
63
16
16,383
1413kb/in
236 ktracks/in
2
329Gb/in
7200 RPM
1695Mb/s
125MB/s
600MB/s
32MB
26.1mm / 1.028 in
101.6mm /4.0 in (+ 0.010 in)
146.99mm / 5.787 in
622g /1.371 lb
4.16ms
<10.0s
<10.0s
<1.0ms read
<1.2ms write
<8.5ms typical
<9.5ms typical
ST3250312AS
ST3160316AS
ST3750525AS
750GB
1,465,149,168
3
2
512
63
16
16,383
1413kb/in
236 ktracks/in
2
329Gb/in
7200 RPM
1695Mb/s
125MB/s
600MB/s
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes: 0 to 6
32MB
26.1mm / 1.028 in
101.6mm /4.0 in (+ 0.010 in)
146.99mm / 5.787 in
622g /1.371 lb
4.16ms
<10.0s
<10.0s
<1.0ms read
<1.2ms write
<8.5ms typical
<9.5ms typical
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