4-Channel 12V DC Switch Board with Optocoupler Isolation for Prototypes

4-Channel 12V Switch Module with Built-in Optocoupler Isolation for Labs

4-Channel 12V DC Switch Board with Optocoupler Isolation for Prototypes

8-Channel 24V Digital Control Board for Electronic Controller Development Work

24V 8-Channel Control Module with Optocoupler Isolation for Lab and DIY Use

AC-DC Power Module Board 12V 1A Isolated Switching Supply for 220V Applications

AC DC Isolated Switch Mode Power Supply 2PCS 12V 500mA 5V 100mA 110V 220V Input