Host interface USB 2.0 Mount type External and Internal for rack-mount solutions I/O module connector USB standard series B receptacle Buffer size 8 MB Compatible operating system: Microsoft® Windows®, Linux (various distributions) Storage capacity 40 GB; Maximum, compressed 2:1 Seek time 50 seconds Transfer rate in sustain mode Native: 3.2 MB/s; Compressed: 6.4 MB/s Burst transfer rate performance Asynchronous: 6.4 MB/s; Synchronous: 40 MB/s Compressed capacity 40 GB Native capacity 20 GB Drive count DDS format DAT Gen-4 (DDS-4) Logical recording format Partial response maximum likelihood (PRML) Data transfer rate 21.6 GB/hr; Maximum, compressed 2:1 Mean time between failures 1 million hours at 12% duty cycle; 125,000 hours at 100% duty cycle Recording technology DAT 40 Buffering 8 MB Encryption type No WORM capability No