USB hub powered, modular relay control board. Relays (4 x): 5 Amp 30VDC, 5Amp 250V AC
Sealed Omron mechanical relays Phoenix Contact terminal blocks Command-line application Standard FTDI USB module (dlls for most OSs) Power on LED, relay indicator LEDs
The Super4 USB relay board is driven over USB directly (not virtual com port). Each board is uniquely identified via its' serial number string, this can be changed using TCTECs RelayMapper application, making replacement of boards easy and programming simple to understand.