Channels 16 , Drives/bays 2 , Rack 1U , SATA , 1x15pin D-sub , 1xHDMI , 1xRS232 , 1xUSB 2.0 , 1xUSB 3.0 , 1xRJ45 , 1xRS-485 , 4xAlarm In , 2xAlarm Out , Power supply requirements Single, AC100V ~ 240V, 50 ~ 60 Hz , Power consumption 25.5 Watts , Dim. 375 x 326.5 x 53mm , Temp. range -10°C ~ +55°C , Colour Black