Seagate BARRACUDA ST3500410AS - Manual (Page 12)

6 Barracuda 7200.12 Serial ATA Product Manual, Rev. H
Table 2: Drive specifications summary for 500GB models
Drive specification ST3500418AS and ST3500410AS ST3320418AS
Formatted capacity (512 bytes/sector)* 500GB 320GB
Guaranteed sectors 976,773,168 625,142,448
Heads 2
Disks 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density (max.) 1413kb/in
Track density (avg.) 236 ktracks/in
Areal density (avg.) 329Gb/in 2
Spindle speed 7200 RPM
Internal data transfer rate (max) 1695Mb/s
Sustained data transfer rate OD (max) 125MB/s
I/O data-transfer rate (max.) 300MB/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 16MB
Height (max) 19.98mm / 0.787 in
Width (max) 101.6mm / 4.0 in (+ 0.010 in)
Length (max) 146.99mm / 5.787 in
Weight (typical) 415g / 0.915 lb
Average latency 4.16ms
Power-on to ready (max) <8.5s
Standby to ready (max) <8.5s
Track-to-track seek time (typical) <1.0ms read;
<1.2ms write
Average seek, read (typical) <8.5ms
Average seek, write (typical) <9.5ms
Startup current (typical) 12V (peak) 2.0A
Voltage tolerance (including noise) 5V +10% / -7.5%
12V +10% / -10.0%
Ambient temperature 0° to 60°C (operating)
–40° to 70°C (non-operating)
Temperature gradient 20°C per hour max (operating)
30°C per hour max (non-operating)
Relative humidity 5% to 95% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max) 30% per hour
Wet bulb temperature (max) 37.7°C (operating)
40.0°C (non-operating)
Altitude, operating –304.8m to 3,048m
(–1000 ft to 10,000+ ft)
Altitude, non-operating
(below mean sea level, max) –304.8m to 12,192m
(–1000 ft to 40,000+ ft)
Operational Shock (max) 70 Gs at 2ms
Non-Operational Shock (max) 350 Gs at 2ms