Твърд диск 320GB, HITACHI Travelstar Z7K320, SATA2, 7200rpm, 16MB, 2.5" (6.35 cm)

Travelstar Z7K320

Interface SATA 3Gb/s
Capacity (GB) 320
Sector size (variable, Bytes/sector) 512
Recording zones 24
Max areal density (Gbits/sq. in.) 477

Performance

Data buffer (MB) 16
Rotational Speed (RPM) 7200
Media transfer rate (Mbits/sec, max) 1334
Interface transfer rate (MB/sec, max) 300
Seek time: Average (typical)ms(read) 13
Seek time: Track to track (typical)ms(read) 1
Seek time: Full Stroke (typical)ms(read) 25

Reliability

Load/Unload Cycles 600,000
Power on hours (POH) per month 720
Availability (hrs/day x days/wk) 24x7

Acoustics

Idle (Bels) 2.3
Seek (Bels, typical) 2.4

Power

Requirement +5VDC (+/-5%)
Requirement: Start-up (W, peak, max) 5.5
Requirement: Read/Write (W, avg) 1.8
Requirement: Low power idle (W, avg) N/A
Requirement: Standby (W, avg) 0.2
Dissipation: Seek (W, Avg) 2.1
Dissipation: Active Idle (W, Avg) N/A
Performance Idle Idle (Avg.) 1.7W
Sleep (W) 0.1
Operating (W, typical) 1.8

Physical size

Z-height (mm) 7
Dimensions (width x depth, mm) 70 x 100
Weight (g, max) 95

Environmental (operating)

Ambient temperature 0^(o) to 60^(o)C
Shock (half-sine wave) 400G/2ms, 225G/1ms

Environmental (non-operating)

Ambient temperature -40^(o) to 65^(o)C
Shock (half-sine wave) 1000G/1ms

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