250GB 7200RPM 8Mb Cache Dell SATA II Desktop Hard Drive
This drive is
compatible with all Dell systems currently on the market that utilize the SATA II interface.
It is also a direct replacement for hard drive models listed below.
Technical Features:
Compatible With The Following Drives:
250GB
Capacity, 7,200 RPM
Western Digital Model#
WD2500JS
8.5ms Average Seek Time
Hitachi Model#
HDT722525DLA380
3.5" Form Factor
Serial
ATA II 3 Gb/s Interface
8MB Buffer
Rotational vibration safeguard
3 Year Warranty
The new series of desktop drives incorporates both new and proven technologies to boost the performance, capacity, and reliability to handle a wide range of advanced storage requirements. Advantages of this drive are fast transfer rates, low power utilization and quiet acoustics.
Specifications:
Data buffer
8 MB
Rotational speed (rpm)
7,200
Latency average (ms)
4.17
Interface transfer rate (max. MB/sec)
300
Seek time (read, typical)
Average (ms)
8.5/8.8
Track to track (ms)
1.1
Full track (ms)
15.1
Power
Requirement
+5 VDC (+/- 5%), +12 VDC (+10%/-8%)
Physical size
Height (mm)
25.4
Width (mm)
101.6
Depth (mm)
146
Weight (max. g)
640
Operating
Ambient temperature
5° to 55° C
Relative humidity (non-condensing)
8% to 90%
Max. wet bulb (non-condensing)
29.4° C
Shock (half sine wave, 2ms)
55G
Vibration (random (RMS)
0.67G for horizontal, 0.56G for vertical
Non-operating
Ambient temperature
-40° to 65° C
Relative humidity (non-condensing)
5% to 95%
Max. wet bulb (non-condensing)
35° C
Shock (half sine wave, 2ms)
350G (2/1 disks)
Vibration (random (RMS)
1.04G rms (XYZ)
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