Seagate SV35.4 - Manual (Page 10)

4 SV35.4 Series SATA Product Manual, Rev. B
Table 1: Drive specifications summary for 320 Gbyte models
Drive specification ST3320410SV
Formatted capacity
(512 bytes/sector)*
320 Gbytes
Guaranteed sectors 625,142,448
Heads 2
Discs 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 1,242 kbits/in max
Track density 173 ktracks/in avg
Areal density 215 Gbits/in 2 avg
Internal data transfer rate 1,201 Mbits/sec max
Sustained data transfer rate 90 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 16 Mbytes
Height (max) 20.20 mm (0.795 inches)
Width (max) 101.85 mm (4.010 inches)
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 380 grams (0.838 lb.)
Power-on to ready 16 sec max
Track-to-track seek time <1.0 msec typical read;
<1.2 msec typical write
Average seek, read <14.0 msec typical
Average seek, write <15.0 msec typical
Startup current (typical) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V ± 5%
12V ± 10%
Operating temperature
(Drive Case temperature)
0° to 75°C
Nonoperating temperature (Ambient) –40° to 70°C
Temperature gradient (max) 20°C per hour max (operating)
30°C per hour max (nonoperating)
Relative humidity 5% to 90% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (max) 37.7°C max (operating)
40.0°C max (nonoperating)
Altitude, operating –60.96 m to 3,048 m
(–200 ft. to 10,000+ ft.)
Altitude, nonoperating
(below mean sea level, max)
–60.96 m to 12,192 m
(–200 ft. to 40,000+ ft.)
Operational Shock 70 Gs at 2 msec max
Non-Operational Shock 350 Gs at 2 msec max