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Usb Relay Board


SainSmart 8-ch 12 V USB Relay Board Module Controller for Arduino AVR US Stock

$31.88


8-way 8-Channel DC 12V Relay control board relays Module For AVR ARM Development

$9.97


SainSmart 8CH 12V USB Relay Board Controller Module for Arduino AVR USA Ship

$28.88


SainSmart USB Eight Channel Relay Board for Automation - 12 V

$19.99


16 channel relay board. USB or Serial! NIB! Great for RaspberryPi

$50.00


USB Eight(8) Relay Module, Board for Home Automation, 12V, Opto-Isolated

$31.25


4 Channel USB/Wireless Relay Board(with Temperature DS18B20) - Andriod/iOS

$36.00


USB 8 Channel Relay Board - Automation, Robotics - 24V

$31.25


Portable 8-CH Controller USB HID Programmable Control Relay Module Board

$9.75


DC 5V USB Relay Module Computer PC Command Smart Control Switch Controller Board

$7.43


New 12V 4 Channel USB Relay Board Automation Module with cable for Arduino

$10.77


KMTronic USB 8 Channel Relay Board, RS232 Serial controlled MICROCHIP CDC

$37.00


8-channel 12 V USB Relay Board Module Controller 4 Automation Robotics C9I2

$18.41


5V USB Relay 2 Channel Board Computer PC Command Smart Control Switch Controller

$11.38


12V 4-Channel USB Relay Board Automation Module For Arduino with cable

$10.75


12V 4 Channel USB Relay Board Auto Module +Cable SRD-12VDC-SL-C for Arduino

$10.77


1 Channel 5V USB Relay Module Control Switch Computer Control Switch Board

$8.19


4/8Channel CH 5V/12V USB Relay Board Module Optocoupler LED For Arduino Robotics

$19.48


8 Channels Controller Mini USB Programmable Control Relay Delay Board Module

$9.75


KMTronic USB > RS485 > 16 Channel Relay Board (controller)

$114.00


USB Relay Controller - RS232 Serial controlled board

$35.00


USB 16 Channel Relay Module,Board for Home Automation - 12V

$84.20


Tinysine TSRU430- 4 Channel 30Amp 12V DC USB Relay Board

$62.95


8 Channel DC 5V PC Master Host computer relay module board with Micro USB

$17.99


KMTronic USB 4 Channel Relay Board, RS232 Serial controlled, PCB

$29.00


8 Channel USB Relay Module Board with LED Indicator Free Driver PC Control

$17.70


KMTronic USB > RS485 > 32 Channel Relay Board (controller)

$196.00


DC 5V 8-Channel USB Relay Board Module Computer Control for Home Automation

$22.19


USB Four(4) Relay Module,Board for Home Automation

$27.50


8 Channel USB Relay Board

$102.51


USB Control Relay Board PC Smart Controller USB Control AC 220V Switch Module

$10.77


2016 USB Relay Module Computer PC Command Smart Control Switch Controller Board

$7.44


KMTronic USB 8 Channel Relay Board DIN rail MICROCHIP CDC

$40.50


PC USB Four(4) Relay Board JQC-3FC with temperature sensor for Home Automation

$34.70


KMTronic USB > RS485 > 24 Channel Relay Board (controller)

$152.00


1pc 5V 4-Channel Micro USB Relay Module USB Control Board 2018

$13.69


New 8-Channel USB Relay Module 17-30V 10A Soft Auto-control Relay board

$15.85


USB Relay Board - Four(4) Channels, for Home Automation JQC-3FC/T7 DC5V

$25.90


DC 5V 8 Channel USB Relay Board Module with LED Indicator Computer Control

$22.19


USB Control Relay Board PC Smart Controller USB Control 220V Switch Module

$10.99


1 Channel 5V USB Relay Module USB Computer Control USB Relay Switch Board

$8.28


8 Channel USB Relay Board Module Free Driver with LED Indicator for Arduino

$17.70


PC USB Four(4) Relay Board with temperature sensor TCN75A for Home Automation

$36.20


KMTronic USB > RS485 > 40 Channel Relay Board (controller)

$230.00


12V 10A 8 Channel USB Relay Module Upper Computer Control Relay Board With Cable

$15.99