SunFounder 5V 8 Channel Relay Shield Module for Raspberry Pi /Arduino
1set For Wemos D1 Mini Relay Shield One Channel For Wemos D1 Mini Relay Module For Arduino Esp8266 Development Board - Integrated Circuits - AliExpress
Raspberry Pi GPIO Expander + Relay Drive Shield - ElectroDragon
Arduino Relay Shield Kit, 9v from NightFire Electronics LLC on Tindie
Arduino 4 Relays Shield — Arduino Online Shop
Amazon.com: DFRobot 4 Channel Relay Shield for Arduino : Electronics
Nettigo: Relay shield for Wemos D1 Mini [Yā nǔ shén]
Relay Shield V2 for WeMos D1 mini | Paradisetronic.com
Relay Shield V3.0 For Arduino - OKdo
WeMos V2 Relay Shield
8-Channel 1-Amp SPDT Signal Relay Shield with IoT Interface - store.ncd.io
Amazon.com: HiLetgo 5V 4 Channel Relay Shield for UNO R3 Relay Shield Four Channel Relay Shield for UNO R3 : Electronics
PiRelay - Relay Shield for Raspberry Pi | Raspberry Pi Relay Board – SB Components Ltd