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Hitachi HTS545050A7E380 (500GB)[edit]

Full list of Features[edit]

Data Storage Capacity
Per drive, Formatted 500 GB
Number of Platters 1
Number of Heads 2
Bytes /Sector 512
Number of Sectors/Track
Number of Cylinders
Number of Sectors
Total Logical Data Bytes
Rotational Speed (rpm) 5400
Data transfer rates (buffer to/from media) (Mbps) 1087
Data transfer rates max(Gbit/sec) 3.0
Recording density (KBPI) (Max)
Track density (KTPI)(Max)
Areal density (Gbit/sq-inch - Max) 636
Number of Zones 30
Performance characteristics
Average seek time (read) 13ms (typ.) / 15ms (max.)
Average seek time (write)
Full stroke seek time (read) 25ms (typ.)
Full stroke seek time (write)
Power-on-ready (sec)
Command overhead (ms)
Track-to-track (read) 1.0 (typ.) / 2.0ms (max.)
Track-to-track (write)
Average Latency time 5.5ms (typ.)
Type SATA 2.6
Buffer (MB) 8
Data Transfer Rate Max. 3.0 Gb/sec
Nominal Power Requirements
Voltage (C); Supply +5V (5%)
Idle (Watts) 0.55 (average)
Standby (Watts) 0.2
Sleep (Watts) 0.1
Reads (Watts) 1.6 (average)
Writes (Watts) 1.6 (average)
Seeks (Watts) 1.8 (average)
Start-up (A) 0.9 (max.)
Physical & Environmental Specifications (mm)
Height 7 (7.0mm ±0.2)
Width 70 (69.85mm ±0.25)
Depth 100 (100.2±0.25)
Weight 95 gram
Operating: Temperature 5°C~60°C
Operating: Relative humidity 8 to 90% non condensing
Operating: Maximum wet bulb temperature 29.4°C non condensing
Operating: Maximum temperature gradient 29.4°C/hour
Operating: Altitude -300 to 3048 m (10000 ft)
Non-Operating: Temperature -40°C~65°C
Non-Operating: Relative humidity 5 to 95% non condensing
Non-Operating: Maximum wet bulb temperature 40°C non condensing
Non-Operating: Maximum temperature gradient 20°C/hour
Non-Operating: Altitude -300 to 12192 m (40000 ft)
Topcover Max. temperature <60°C
Drivecircuitboard Max. temperature <63°C
Vibration and Shock
Operating Vibration 1.0 G (9.8 m/s^2) with 5-500Hz
Non-Operating Vibration 5.0 G (49 m/s^2) with 5-500Hz
Operating Shock 400 G (3920 m/s^2) 2 msec / 225 G (2205 m/s^2) 1 msec
Non-Operating Shock 1000 G (9800 m/s^2) 1 msec
Acoustic Noise (Idle Mode) 1.9 Bels (typ.)
Acoustic Noise (Operating Mode) 2.1 Bels (typ.)