The IA-3124-U2i is a 48-ch Digital I/O Industrial Controller with a Sink Current of up to 1Amp on each output channel and an input voltage range of up to 30VDC. This Power Digital I/O Controller is an ideal Solenoid/Valve/LED controller with the fastest response time and endless operation life while comparing to original relay kind solution. The IA-3124-U2i includes an Isolated USB Port that isolates the Host Computer from the IA-3124-U2i I/O lines and from its power supply. In this way the Host Computer is actually isolated from the Factory Floor, the Building wiring net etc., while the IA-3000 Series product may be transparently chained, sharing the same Power-Supply, providing latency free efficient Monitor and Control System.