Gateway P-170L 160GB SATA Hard Drive 2523467RInterfaceSATACapacity160 GBBytes per Sector512 bytesSectors per Track480-1272Physical data heads4Disks2Rotational speed5,400 revolutions per minute (rpm)Maximum media transfer rate540 megabits per second (Mbps)Number of heads (logical)16Number of sectors/track63Number of cylinders16,383Number of sectors 312,581,808Total logical data bytes160,041,885,696Average random seek time Read 11 milliseconds (ms)Average random seek time Write 13 (ms)Power-on-to-ready 3.5 seconds (sec)Command overhead1.0 (ms)Disk-buffer data transfer540 Mb/s maximumBuffer-host data transfer1.5 Gbit/s maximumLoad/Unload cycle600,000PowerRequirement+5 VDC (±5%)Startup (maximum peak)5.0 watts (W)Read (average)1.8 WWrite (average)1.8 WActive idle (average)0.85 WLow power idle (average)0.65 WStandby (average)0.25 WSleep0.2 WEnvironmentalTemperature Operating: 5° to 55° CNon-operating: -40° to 65° CRelative humidity (non-condensing) Operating: 8 to 90%Non-operating: 5 to 95%Maximum wet bulb (non-condensing) Operating: 29.4° C Non-operating: 40° CShock (half sine wave) Operating: 325G / 2ms, 160G / 1msNon-operating: 1000G / 1msPhysicalHeight9.5 millimeters (mm)Width70 mmDepth100 mm