HP Gtech G-Technology G-Drive Mobile 1 Tb External Hard Drive DC7800 manual Track to Track Average

QuickSpecs

HP Compaq dc7800 Business PC

Technical Specifications - Hard Drives

		Seek Time	Read (typical)
			Track to Track	1 ms
			Average	13 ms
			Full-Stroke	22 ms
			Average latency	4.2 ms
		Rotational Speed	7,200 RPM
		Buffer (max)	4 sec
		Operating Temperature	41° to 131° F (5° to 55° C)
7200 RPM Serial ATA	500-GB	Capacity	500,107,862,016 bytes
Hard Drives		Height	1 in (2.54 cm)
		Width	Media diameter: 3.5 in (8.89 cm)
			Physical size: 4 in (10.2 cm)
		Interface	Serial ATA (3.0 Gb/s)
		Synchronous Transfer	Up to 3 Gb/s
		Rate (Maximum)
		Buffer	16 MB
		Seek Time (typical reads,	Single Track	2.0 ms
		includes controller	Average	11 ms
		overhead, including
			Full-Stroke	21 ms
		settling)
		Rotational Speed	7,200 RPM
		Logical Blocks	976,773,168
		Operating Temperature	41° to 131° F (5° to 55° C)
	250-GB	Capacity	250,059,350,016 bytes
		Height	1 in (2.54 cm)
		Width	Media diameter: 3.5 in (8.89 cm)
			Physical size: 4 in (10.2 cm)
		Interface	Serial ATA (3.0 Gb/s)
		Synchronous Transfer	Up to 3 Gb/s
		Rate (Maximum)
		Buffer	8 MB
		Seek Time (typical reads,	Single Track	1.0 ms
		includes controller	Average	8.5 ms
		overhead, including
			Full-Stroke	18 ms
		settling)
		Rotational Speed	7,200 RPM
		Logical Blocks	488,397,168
		Operating Temperature	41° to 131° F (5° to 55° C)
	160-GB	Capacity	160,041,885,696 bytes
		Height	1 in (2.54 cm)
		Width	Media diameter: 3.5 in (8.89 cm)
			Physical size: 4 in (10.2 cm)

DA - 12744 North America — Version 25 — May 16, 2008 Page 43