1 channel 5V Relay Module, Opto-coupler isolated, for Arduino and MCU projects.

2Pcs 5V One Channel Relay Module with Opto Isolation, High/Low Level Trigger

4pcs 2 Channel 5V Relay Module with Optocoupler - High/Low Trigger Support

AITRIP 2PCS 5V 8 Channel Relay Module with OPTO-Isolated 5V, 8CH-5V-2PCS-Red

2Pcs DC 24V 1 Channel Relay Module with OPTO Isolation Support High or Low Level

2x DC 5V Relay Module 2-Channel Relay Switch Optocoupler Isolation High/Low

5V Relay Module 1/2/4/6/8 Channel Opto-Isolated for Arduino ESP32 Raspberry Pi

5V 1 Channel Relay Module Optocoupler Isolation High Low Level Trigger 250V 10A