Each serial port supports 5-pin screw-lock-type terminal block connector AC to DC-12V, 1A switching power supply included Virtual COM port drivers available for Windows 10, 8.1, 8, 7, Vista, 2003, 2000 Dimensions: 192.42 x 122.22 x 23.60 mm (L×W×H), dimensions are to DIN rail(W), to power plug(L) Supports USB 1.1 and USB 2.0 transfer speeds from 1.5 up to 480 Mbps