SainSmart USB 4 Channel DC 12V Relay Module Automation for Arduino Raspberry Pi DSP AVR PIC ARM: Usb Relay Board: Amazon.com: Industrial & Scientific
Acxico 1Pcs 3-32V DC 1-Channel SSR Solid State Relay High-Low Trigger 5A 5V 12V for Arduino: Amazon.com: Industrial & Scientific
Amazon.com: DC 12V 24V 20W Voice Playback Module, PEMENOL High Power Sound Board MP3 Player 64Mbit Flash Storage Mono 8ohm Support MP3 WAV for Arduino : Electronics
Amazon.com: D-FLIFE 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR (12V 16-Channel) : Electronics
DC-DC 12V to 3.3V 5V Buck Step Down Power Supply Module for Arduino: Amazon.com: Industrial & Scientific
Tanbupu 3PCS Relay Module 12V DC 1 Channel Relay Optocoupler Isolation Switch Board with OPTO-Isolated Support High Or Low Level Trigger Board for Arduino X-002-1-12VDC: Amazon.com: Industrial & Scientific
Amazon.com: Treedix 4 Channel DC 12V Relay Module with Optocoupler Isolation Relay Control Board Compatible with Arduino UNO R3 Raspberry Pi DSP AVR PIC ARM : Industrial & Scientific
1 Channel Relay Shield Module, 10PCS DC 5V Indicator Light LED Module for Arduino R3 MEGA 2560 1280 ARM PIC AVR STM32 Raspberry Pi MCU DSP Official Boards Shield (10PCS): Amazon.com: Industrial
Amazon.com: ILAME 4 6 8 Channel Relay Module DC 5V 12V 24V Board Shield with Optocoupler/High and Low Level Trigger for arduino Raspberry Pi (Color : 24V, Size : 4 Channel) : Electronics
Amazon.com: ACEIRMC 12V 16-Channel Relay Interface Board Module Optocoupler LED LM2576 Power for Arduino DIY Kit PiC ARM AVR : Electronics
Amazon.com: JAMCHE Relay Module 1 2 4 6 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger for Arduino (Color : 12V 4 Channel Red) : Industrial & Scientific
Eletechsup DC 12V 8 Channel Pro Mini PLC Board Relay Shield Module for Arduino Multifunction Delay Timer Switch Board (8ch Relay Board): Amazon.com: Tools & Home Improvement
Amazon.com: Gikfun 12V DC Dosing Pump Peristaltic Dosing Head with Connector For Arduino Aquarium Lab Analytic Diy AE1207 : Pet Supplies
1 2 4 8 Channel 5V 12V Relay Module Board Shield with Optocoupler Support High and Low Level Trigger Suitable for Arduino-12V 1 Channel Red: Amazon.com: Industrial & Scientific
Tolako 5v 16 Channel Relay Module Board for Arduino with Optocoupler Protection Works with Official Arduino Board: Amazon.com: Tools & Home Improvement
Tanbupu Relay Module 12VDC 2 Channel Relay Switch Board with OPTO-Isolated High Or Low Level Trigger Board for Arduino X-002-2-12VDC: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 12V 8 Channel Relay Module with OPTO-Isolated High and Low Level Trigger 8 Ways Relay Switch Module for Arduino : Industrial & Scientific
Amazon.com: SainSmart 16-Channel 12V Relay Module Board for Arduino DSP AVR PIC ARM : Electronics
Amazon.com: DIYables 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry Pi, 1 Channel, 5V, High/Low Level Trigger : Electronics
Amazon.com: HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V : Industrial & Scientific
Amazon.com: 2PCS 4 Channel 12V Relay Module with Optocoupler High or Low Level Trigger Expansion Board for Raspberry Pi Arduino STM32 Red : Industrial & Scientific
Amazon.com: 3.3V 5V 12V Multi Output Voltage Conversion DC-DC 12V to 3.3V 5V 12V Step Down Buck Power Supply Module for Arduino : Electronics
Amazon.com: SMAKN DC 12V 3-Ch Self-Lock Interlock Triggered Relay Module for PIC Arduino : Electronics
Amazon.com: 12V 8 Channel Relay Expansion Module For Arduino With optocoupler isolation : Musical Instruments
