Твърд диск 320GB, Hitachi, SATA2, 5400rpm, 8MB, 2.5" (6.35 cm), 7mm

Travelstar™ Z5K320

Configuration

Interface - SATA 3Gb/s
Capacity (GB) - 320
Sector size (bytes) - 512
Recording zones - 24
Aerial density (Gbit/sq.in, max) - 477

Performance

Data buffer (MB) - 8
Rotational speed (RPM) - 5400
Latency average (ms) - 4.2
Media transfer rate (Mbits/s, max) - 1334
Interface transfer rate (MB/s) - 300
Seek time
Average (typical) ms (read) - 13
Track to track (typical) ms (read) - 1
Full stroke (typical) ms (read) - 25

Reliability

Load/Unload cycle - 600,000
Power on hours (POH) per month - N/A
Availability4 (hrs/day x days/wk) - N/A

Power

Requirement +5VDC (+-5%)
Dissipation (typical)
Startup (W, peak, max) - 4.5
Seek (W, average) - 1.8
Read/Write (W, average) - 1.6
Performance idle (W, average) - 1.5
Active idle (W, average) - 0.8
Low power idle (W, average) - 0.55
Standby (W, average) - 0.2
Sleep - 0.1

Physical size

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

Environmental (operating)

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

Environmental (non-operating)

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

Acoustics (A-weighted sound power)

Idle (Bels, typical) - 1.9
Seek (Bels, typical) - 2.0


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