20
Physical (without stand)
Dimensions: .................................................................................... 128 MM W  X 207MM L  X  37MM H
Configuration/Performance
Interface: .............................................................................................................. Hi-Speed USB 2.0
Interface transfer rate (max) ............................................................................................ 480 Mbps
Data buffer (cache) ...................................... 2 MB (< 250 GB), 8 MB (< 400 GB), 16MB (≥ 400 GB)
Rotational speed ............................................................................................................. 7,200 RPM
Latency (average) ...................................................................................................................4.2 ms
Seek times (average) 
Read ...................................................................................................................................8.9 ms 
Write.................................................................................................................................10.9 ms 
Track-to-track ........................................................................................................................2 ms 
Full stroke ............................................................................................................................21 ms
Error rate (non-recoverable) ............................................................................. < 1 in 10
14
 bits read
Spindle start time (max) ..............................................................................................................9 s
Start/Stop cycles (at 25ºC) ....................................................................................................50,000
Chassis approved/recognized ....................................................................................................... CE
Technical specifications