Gateway 160GB 7200 RPM Serial ATA Hard Drive with 8MB Cache. - 5503603

Feature	Description
Physical/Logical Layout
Label Capacity	160 GB
Bytes per Sector	512
Sectors per Track	567-1170
Number of Heads	4
Number of Disks	2
Data Sectors per Cylinder	2268-4680
Data Cylinders per Zone	1444-4501
Sectors per Track	63
Number of Sectors	321 672 960
Total Logical Data Bytes	164 696 555 520
Performance
Data Transfer Rates	757 Mbps
Interface Transfer Rates	100 Mb/s
Data Buffer Size	8192 KB
Rotational Speed	7200 RPM
Number of Buffer Segments	Read: up to 128 Write: up to 63
Recording Density	689 Kbpi max
Track Density	90 TPI
Areal Density	62 Gbits/in2 max
Number of Data Bands	30
Average Seek Time (Including Settling)	Read: 8.2 ms typ. 9.2 ms max Write: 9.2 ms typ. 10.2 ms max Read (Quiet Seek mode): 19.5 ms typical 20.5 ms maximum Write (Quiet Seek mode): 20.5 ms typical 21.5 ms maximum
Full Stroke Seek Time (Without Command Overhead Including Settling)	Read: 14.7 ms typical 17.7 ms maximum Write: 15.7 ms typical 18.7 ms maximum Read (Quiet Seek mode): 32.5 ms typical 35.5 ms maximum Write (Quiet Seek mode): 33.5 ms typical 36.5 ms maximum
Drive Ready Time (Power On To Ready)	8 seconds typical 31 seconds maximum
Environmental
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: 8% to 90% Non-operating: 5% to 95%
Maximum Wet Bulb Temperature	Operating: 84.9° F (29.4° C) non-condensing Non-operating: 95° F (35° C non-condensing)
Maximum Temperature Gradient	59° F (15° C) per hour
Altitude	Operating: -1 000 to 10 000 (-300 to 3 048 m) Non-operating: -1 000 to 40 000 (-300 to 12 000 m)
Power
Input Voltage (Absolute Max Spike Voltage*)	+5 volts (±5%): -0.3 to 7 V +12 volts (+10% -8%): -0.3 to 15 V *To avoid damage to the drive electronics power supply voltage spikes must not exceed specifications.
Power Usage (Average Unless Otherwise Noted)	+5 volts Idle: 400 mA 6.5 W Low RPM idle: 230 mA 2.8 W Random read/write: 520 mA 9.8 W Start up (Max): 960 mA Standby: 230 mA 1.4 W Sleep: 190 mA 1.2 W +12 volts Idle: 375 mA 6.5 W Low RPM idle: 140 mA 2.8 W Random read/write: 590 mA 9.8 W Start up (Max): 1750 mA Standby: 20 mA 1.4 W Sleep: 20 mA 1.2 W
Other
Dimensions (H × W × L)	1 × 4 × 5.75 inches (25.4 × 101.6 × 146.0 mm)
Weight	1.41 lbs. (640 grams)
Certifications	UL 1950 Third Edition CAN/CSA C22.2 No.950-M95 Third Edition TUV EN60950:1992+A1-4 EC 89/336/EEC AS/NZS 3548:1995 Class B EMC standard CNS 13438 Class B