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4 Barracuda Serial ATA V Product Manual, Rev. B
ATA data-transfer modes
supported
SATA 1.0
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–5
Cache buffer 8 Mbytes
Height (mm max) 26.1
Width (mm max) 101.85
Length (mm max) 147.0
Weight (typical) 635 grams (1.4 lb)
Average latency (msec) 4.16
Power-on to ready
(typical)
10 sec
Standby to ready (typical) 10 sec
Startup current (typical)
12V (peak)
2.8 amps
Track-to-track seek time
(msec typical)
1.0 (read), 1.2 (write)
Average seek time
( typical)
9.4 msec 9.0 msec
Average seek, read
(typical)
9.4 msec
9.0 msec
Average seek, write
(typical)
10.5 msec
10.0 msec
Seek power (typical) 13.5 watts
Operating power
(typical)
13 watts
Idle mode (typical) 9.5 watts
Standby mode 1.8 watts
Sleep mode 1.8 watts
Voltage tolerance
(including noise)
5V ± 5%
12V ± 10%
Ambient temperature 0° to 60°C (op.), –40° to 70°C (nonop.)
Table 1: Drive specifications
Drive specification ST3120023AS ST380023AS ST360015AS