![Amazon.com: waveshare RPi Relay Board Raspberry Pi Expansion Board, Three Channel (3-CH) Power Relay Module for Raspberry Pi 4B/3B+/3B/2B/A+/B+, Loads up to 5A 250V AC or 5A 30V DC : Electronics Amazon.com: waveshare RPi Relay Board Raspberry Pi Expansion Board, Three Channel (3-CH) Power Relay Module for Raspberry Pi 4B/3B+/3B/2B/A+/B+, Loads up to 5A 250V AC or 5A 30V DC : Electronics](https://m.media-amazon.com/images/I/71AJZjN1e4L.jpg)
Amazon.com: waveshare RPi Relay Board Raspberry Pi Expansion Board, Three Channel (3-CH) Power Relay Module for Raspberry Pi 4B/3B+/3B/2B/A+/B+, Loads up to 5A 250V AC or 5A 30V DC : Electronics
![RPI RELAIS 8CH: Raspberry Pi - relay module, 8 channel, DIN rail, HLS8L-DC5V-S-C at reichelt elektronik RPI RELAIS 8CH: Raspberry Pi - relay module, 8 channel, DIN rail, HLS8L-DC5V-S-C at reichelt elektronik](https://cdn-reichelt.de/bilder/web/xxl_ws/A300/RPI_RELAIS_8CH_01.png)
RPI RELAIS 8CH: Raspberry Pi - relay module, 8 channel, DIN rail, HLS8L-DC5V-S-C at reichelt elektronik
![Amazon.com: GeeekPi Raspberry Pi Expansion Board 4 Channel Relay Board Module Power Relay Module for Raspberry Pi 4B & Raspberry Pi 3 Model B+ & Raspberry Pi 3/2 Model B (No Programming Amazon.com: GeeekPi Raspberry Pi Expansion Board 4 Channel Relay Board Module Power Relay Module for Raspberry Pi 4B & Raspberry Pi 3 Model B+ & Raspberry Pi 3/2 Model B (No Programming](https://m.media-amazon.com/images/I/61dkc1seTpL.jpg)
Amazon.com: GeeekPi Raspberry Pi Expansion Board 4 Channel Relay Board Module Power Relay Module for Raspberry Pi 4B & Raspberry Pi 3 Model B+ & Raspberry Pi 3/2 Model B (No Programming
![Amazon.com: XYGStudy Raspberry Pi Expansion Board Power Relay Module for Raspberry Pi 4 3 2 Model B B+ A+ : Electronics Amazon.com: XYGStudy Raspberry Pi Expansion Board Power Relay Module for Raspberry Pi 4 3 2 Model B B+ A+ : Electronics](https://m.media-amazon.com/images/I/61lbAlOgS2L.jpg)
Amazon.com: XYGStudy Raspberry Pi Expansion Board Power Relay Module for Raspberry Pi 4 3 2 Model B B+ A+ : Electronics
![32-Channel DPDT Signal Relay Controller with I2C Interface - IoT Devices & Sensors | Relay Controllers, Current Monitoring & Vibration Sensors 32-Channel DPDT Signal Relay Controller with I2C Interface - IoT Devices & Sensors | Relay Controllers, Current Monitoring & Vibration Sensors](https://media.ncd.io/sites/2/20170721154405/MCP2301_I2CR32xDPDT_2.png)