8 Channel I2C Relay Board With USB C Dual Power 3V3 And 5V SPDT 10A EMR DIN Rail Ready Expandable Plug And Play For Arduino ESP32 Raspberry Pi ESPHome Home Assistant

8-Channel I2C Relay Board with USB-C Power Ready
✔️ 8-channel I2C control, dual 3.3V/5V rails, 10A relays, single board

This 8-channel relay board uses eight SPDT relays driven by the XL9535 GPIO expander. It supports dual power modes (3.3V logic for ESP32/ESP8266/Raspberry Pi and 5V coils) with a USB-C power input for easy setup. The compact DIN rail friendly design measures about 150×72 mm, making it easy to drop into home automation panels or industrial cabinets.

✅ 8x SPDT relays rated 10A @ 250VAC / 30VDC
✅ I2C controlled via XL9535 expander
✅ Dual power mode: 3.3V logic and 5V coil; USB-C input
✅ Isolated logic and relay power rails for stable MCU operation
✅ DIP switches set 0x20-0x27 addresses; up to 64 relays on 8 boards

💡 What is an I2C relay board used for? This handy device helps you switch high-current loads from a microcontroller while keeping I2C lines free for other tasks. - Handy for lighting control, pumps, motors in home automation and industrial projects - Supports 3.3V/5V logic with isolated power rails for stable operation - Expandable up to 64 relays with multi-board I2C addresses