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2 Channel USB Relay Module
URMC2 2 Channel USB Relay Module is great for controlling your devices
Starts at $37.99
64 Channel USB Relay Module
Numato Lab's 64 Channel USB Relay Module is a versatile product for co
Starts at $496.99
NL-USBG-C-008
Numato Lab's NL-USBG-C-008 module is a small and handy module which he
Starts at $41.99