250 GB
250 GB250 GB
250 GB
(7,200 rpm)
Capacity
CapacityCapacity
Capacity
250,059,350,016 bytes
Height
HeightHeight
Height
1 inches; 2.54 cm or less
Width
WidthWidth
Width
Media diameter: 3.5 inches; 8.89 cm
Physical size: 4 inches; 10.2 cm
Interface
InterfaceInterface
Interface
Serial ATA (3.0 Gb/s), Native Command Queuing enabled
Synchronous Transfer
Synchronous TransferSynchronous Transfer
Synchronous Transfer
Rate
RateRate
Rate
(Maximum)
Up to 300 MB/s
Cache
CacheCache
Cache
16 MB
Seek Time
Seek TimeSeek Time
Seek Time
(typical reads,
includes controller
overhead, including
settling)
Single Track
Single TrackSingle Track
Single Track
1.0 ms
Average
AverageAverage
Average
11.0 ms
Full-Stroke
Full-StrokeFull-Stroke
Full-Stroke
18 ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed
7,200 rpm
Logical Blocks
Logical BlocksLogical Blocks
Logical Blocks
488,397,168
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature
41° to 131° F (5° to 55° C)
500 GB
500 GB500 GB
500 GB
(7,200 rpm)
Capacity
CapacityCapacity
Capacity
500,107,862,016 bytes
Height
HeightHeight
Height
1 inches; 2.54 cm or less
Width
WidthWidth
Width
Media diameter: 3.5 inches; 8.89 cm
Physical size: 4 inches; 10.2 cm
Interface
InterfaceInterface
Interface
Serial ATA (3.0 Gb/s), Native Command Queuing enabled
Synchronous Transfer
Synchronous TransferSynchronous Transfer
Synchronous Transfer
Rate
RateRate
Rate
(Maximum)
Up to 300 MB/s
Cache
CacheCache
Cache
8 MB
Seek Time
Seek TimeSeek Time
Seek Time
(typical reads,
includes controller
overhead, including
settling)
Single Track
Single TrackSingle Track
Single Track
1.3 ms
Average
AverageAverage
Average
20.0 ms
Full-Stroke
Full-StrokeFull-Stroke
Full-Stroke
30 ms
Rotational Speed
Rotational SpeedRotational Speed
Rotational Speed
7,200 rpm
Logical Blocks
Logical BlocksLogical Blocks
Logical Blocks
976,773,168
Operating Temperature
Operating TemperatureOperating Temperature
Operating Temperature
41° to 131° F (5° to 55° C)
QuickSpecs
HP xw4550 Workstation
HP xw4550 WorkstationHP xw4550 Workstation
HP xw4550 Workstation
Technical Specifications - Hard Drives
DA - 12791 Worldwide — Version 3 — October 1, 2007
Page 33
(16 pages)
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