Barracuda XT Series SATA Product Manual, Rev. C
3
2.0
Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For con-
venience, the phrases
the drive
and
this drive
are used throughout this manual to indicate the following drive models:
The specification summaries listed in the following tables are for quick reference. For details on specification measure-
ment or definition, see the appropriate section of this manual.
Table 1:
Drive specifications summary
for 2000GB models
ST32000641AS
Drive specification
ST32000641AS
Formatted capacity (512 bytes/sector)*
2000GB
Guaranteed sectors
3,907,029,168
Heads
8
Disks
4
Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density
1421 kb/in
Track density(avg)
240 ktracks/in
Areal density (avg)
347Gb/in
2
Spindle speed
7200 RPM
Internal data transfer rate (max)
1300Mb/s
Sustained data transfer rate OD(max)
138MB/s
I/O data-transfer rate (max)
600MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
Cache buffer
64MB
Height (max)
26.1mm / 1.028 in
Width (max)
101.85mm / 4.010 in
Length (max)
146.99mm / 5.787 in
Weight (typical)
700g / 1.543 lb
Average latency
4.16ms
Power-on to ready (typical)
15s
Standby to ready (typical)
15s
Startup current (typical) 12V (peak)
2.8A
Summary of Contents for ST32000641AS - Barracuda XT 2 TB Hard Drive
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