4-Channel 12V Switch Board with Optocoupler Isolation 4pcs for Microcontroller

12V 4-Channel Optocoupler Isolated Switch for Electronic Development

12V 1A AC DC Isolated Power Supply with Wide Input Range 85-264V 50/60Hz

AC to DC Isolated Power Supply 12V 1A 12W Output 85V-264V Input for IoT Devices

8-Channel 24V DC Interface Board for Microcontroller Development and Lab Work

Switching Power Supply 2PCS 12V 300mA 3W AC DC Isolated for Industrial Control