USB-RLY08-C - 8 channel USB relay , from Devantech for €48.51
KMtronic Ltd: USB Four(4) Relay Controller
USB 4 Channel Relay Board
USB Relay Controllers with On-Board Analog Inputs and GPIO for Sensors
USB-RLY04 - 4 x 16A USB relay
16 Channel USB Relay Module (NU-RL160001) 12V
usb relay
USB Relay Modules - Numato Lab | DigiKey
8-channel 12v Usb Relay Board, 8-channel 12v For Dc Type-b Usb Relay Board Modul | Fruugo SK
4-Channel USB Relay Board with 6-Channel A/D Interface
16-Channel 9-36V USB Relay Module – SainSmart.com
USB 8 Channel Relay Board
USB Relay Module, Easy to Use Replacement 10A USB Relay Board 6 (5v): Amazon.com: Industrial & Scientific
Devantech 8 Channel USB Relay Module | Acroname
USB Relay Board - 8 Way - 30A High Power - Micro Robotics
4 Channel USB Relay Module_ Botland - Robotic Shop
USB Relay Board - High Power USB Relays for Industrial Applications
USB Relay Board, Modes 6 Channel USB Relay Module Wide Application For Households 5V,12V,24V - Walmart.com
Amazon.com: SainSmart USB Eight Channel Relay Board for Automation - 12 V : Industrial & Scientific
8 Channel USB Relay Module - 12V (NU-RL80001)
16 Channel USB Relay Module With GPIO And Inputs | Numato Lab
