Specifications
Part Number: 5508799R250 GB 7200 RPM SATA II Hard Drive With 8 MB Cache

Following are the specifications for the Seagate® 250 GB 7200 RPM SATA II hard drive.
Specifications are subject to change without notice or obligation.

Feature Specification
Formatted Capacity 250 GB
Actuator Type Voice coil
Media Type Thin film
Head Type Giant Magnetoresistive (GMR)
Recording Methode EPRML 16/17 ZBR
Transfer Rates
  • Internal: Up to 867.2 Mbits/sec
  • Sustained: Up to 76.6 Mbytes/sec
  • External: Up to 300 Mbytes/sec
    		•
    Maximum Modes
  • PIO: 4
  • DMA: 2
  • UDMA: 5
    		•
    Spindle Speed 7200 RPM
    Average Latency 4.16 msec
    Buffer 8 MB
    Read/Write Multiple, Read Look-Ahead, Multi-Segmented
    Interface SATA 2.0 with NCQ
    Sectors per Drive 488,397,168 LBA mode
    Tracks per Inch 124.5 KTPI, avg.
    Bits per Inch Up to 790.1 KBPI
    Average Access
  • Read: <8.0 ms
  • Write: <9.0 ms
    		•
    Single Track Seek
  • Read: <0.8 ms
  • Write: <1.0 ms
    • Shock
  • Operating (read/write): 63 Gs, 11 ms/2 ms
  • Non-operating: 350 Gs, 11 ms/2 ms
    		•
    Fluid Bearing Acoustics
  • Typical: 2.7 bels
  • Max performance: 3.6 bels
    		•
    +12V Start-Up Power Requirement 2.80 amps
    Power Management
  • Active: 9.82 watts
  • Idle: 7.75 watts
  • Standby: 1.24 watts typ.
    		•
    Dimensions (H × W × D) 1.028 × 4.00 × 5.78 inches (26.1 × 101.6 × 146.99 mm)
    Weight 1.28 lbs. (580 g)
    Compliance
    NCQ Compliant
    Native Command Queueing    		 Yes