PC and USB based Relay and Control Products

http://www.j-works.com/ is manufacturer of PC and USB based  Relay.  DPDT,  SPDT, Temperature, Thermocouple, I/O, Digital, FPGA, Counter, WDT, Encoder, USB Switch, Analog, Opto IO, Monitor, USB IO, USB DIO, USB ADC, USB DAC, USB Measurement and Control Products.

They have whole portfolio of USB Opto I/O Modules, USB WatchDog Timers Modules, USB Relay modules, USB Digital I/O (DIO) modules, USB Analog Measurement modules, USB AC Monitor Modules, USB Counter  Modules, and USBTemperature modules.

They recently released their J-Works JSB291-03 USB controlled SPDT 20 Amp relay module now and it is in full production.

Wow, this is one company that is fully into control systems and USB.