Environment Operational Temperature With extended temperature peripherals: -20 ~ 60° C (-4 ~ 140° F) with 0.7m/s air flow With 2.5-inch hard disk 0 ~ 45° C (32 ~ 112° F) with 0.7m/s air flow
I/O Interface USB 2 x USB 2.0, 4 x USB 3.0 Serial Port 4 x RS-232/422/485 DIO 1 LAN (RJ-45) 2 Audio line out/mic in