Seagate BARRACUDA ST3500410AS - Manual (Page 14)

8 Barracuda 7200.12 Serial ATA Product Manual, Rev. H
Table 3: Drive specifications summary for 250GB models
Drive specification ST3250318AS ST3160318AS
Formatted capacity (512 bytes/sector)* 250GB 160GB
Guaranteed sectors 488,397,168 312,581,808
Heads 1
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 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 8MB
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)
Average seek, write (typical)
<8.5ms (read)
<9.5ms (write)
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 (max.) 20°C per hour (operating)
30°C per hour (non-operating)
Relative humidity 5% to 95% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max.) 30% per hour
Wet bulb temperature 37.7°C max (operating)
40.0°C max (non-operating)
Altitude, operating –60.96m to 3,048m
(–1000 ft to 10,000+ ft)
Altitude, non-operating
(below mean sea level, max.) –60.96m to 12,192m
(–1000 ft to 40,000+ ft)
Operational Shock (max.) 70 Gs at 2ms
Non-Operational Shock (max.) 350 Gs at 2ms