Performance
Data buffer3 8 M
(3D-8M,2D-2M/8M,1D-2M)
Rotational speed (rpm) 7,200
Latency average (ms) 4.17
Media transfer rate (max. Mbits/sec) 757
Interface transfer rate (max. MB/sec) 150 and 300mbps
Sustained data rate (MB/sec) 61.4 -29.7 (zone 0-29)

Seek time (read, typical)4
Average (ms) 8.5/8.8
Track to track (ms) 1.1
Full track (ms) 15.1

Reliability
Error rate (non-recoverable) 1 in 10E14
Start/stops (at 40° C) 50K

Acoustic
Idle (Bels) 3.0 (3 disks
2.8 (2 disks)
2.6 (1 disk)

Power
Requirement +5 VDC (+/- 5%), +12 VDC (+10%/-8%)
Dissipation
Startup current (max. A) 1.72 (+12V) & 068 (+5V)
Idle (W) 7.0 (3 disks) 7.6 (3 disks)
5.9 (2 disks) 6.5 (2 disks)
5.0 (1 disk) 5.6 (1 disk)

Industry-leading performance
The Hitachi Deskstar 7K250 extends the company’s long-standing tradition of performance leadership. This new series of Deskstar drives incorporates both new and proven technologies to boost the performance, capacity, and reliability to handle a wide range of advanced storage requirements.

Hitachis standardized features in desktop solutions enable fast transfer rates, low power utilization and quiet acoustics. These features combine to make the Deskstar 7K250 ideal not only for standard PC systems but also for ATA entry-servers, personal video recorders and other non-PC computing requirements.
Serial ATA technology

Serial ATA technology provides significant benefits to end-users and storage vendors by supplying a platform that overcomes the limitations of parallel-ATA hard drives. System integration is simplified with:

Improved point-to-pointinterface cabling

Hot-plug connection capability

Reduced pin count

Lower voltage signaling

Smaller connectors and cables