Feature	Description
Performance
Rotational Speed	7 200 RPM (nominal)
Buffer Size	8 MB
Average Latency	4.20 ms (nominal)
Contact Start/Stop Cycles	50 000 minimum
Seek Times (Average)	Read: 8.9 ms Write: 10.9 ms (average) Track-To-Track: 2.0 ms Full Stroke: 21.0 ms (average)
Transfer Rates	Buffer To Disk: 748 Mbits /s (Max) Buffer to Host (EIDE): Mode 5 Ultra ATA: 100.0 MB/s Mode 4 Ultra ATA: 66.6 MB/s Mode 2 Ultra ATA: 33.3 MB/s Mode 4 PIO: 16.6 MB/s Mode 2 multi-word DMA: 16.6 MB/s
Configuration
Cylinders	16 383
Number of Heads (Logical)	16
Number of Heads (Physical)	6
Sectors Per Track	63
Formatted Capacity	250 059 MB
Capacity	250 GB
Interface	EIDE
Actuator Type	Rotary Voice Coil
Number of Platters	3
Bytes Per Sector	512
User Sectors Per Drive	488 397 168
Servo Type	Embedded
Physical
Dimensions (H × L × W)	1.028 × 5.787 × 4.00 inches (26.1 × 147 × 101.6 mm)
Weight	1.32 Pounds (0.6 kg)
Environmental
Shock	Operating (Read): 65G 2 ms Non-operating: 250G 2 ms
Acoustics	Idle Mode: 28 dBA (average) Seek Mode 0: 33 dBA (average) Seek Mode 3: 29 dBA (average)
Temperature	Operating: 41° F to 131° F (5° C to 55° C) Non-operating: -40° F to 149° F (-40° C to 65° C)
Relative Humidity (Non-Condensing)	Operating: 5% to 95% Non-operating: 5% to 95%
Altitude	Operating: -1 000 feet to 10 000 feet (-305 M to 3 050 M) Non-operating: -1 000 feet to 40 000 feet (-305 M to 12 200 M)
Vibration	Operating: Linear: 20-300 Hz 0.75G (0 to peak) Random: 10-300 Hz 0.004 g2/Hz Non-operating: Low Frequency: 5-20 Hz 0.195 inches (double amplitude) High Frequency: 20-500 Hz 4.0G (0 to peak)
Electrical
Current Requirements	12 VDC: Read/Write: 530 mA Idle: 510 mA Standby: 30 mA Sleep: 30 mA 5 VDC: Read/Write: 450 mA Idle: 400 mA Standby: 150 mA Sleep: 120 mA Power Dissipation: Read/Write: 8.600 Watts Idle: 8.100 Watts Standby: 1.100 Watts Sleep: 1.000 Watts