Tandberg Data RDX QuikStor, USB. Interface: USB 2.0. Colour of product: Black. Operating relative humidity range: 10 - 90 %, Operating temperature range (T-T): 10 - 40 °C, Storage temperature range (T-T): -40 - 65 °C. Mean time between failures (MTBF): 500000 h. Certification: UL 60950, CSA C22.2 No. 60950, IEC 60950/ EN60950