4 Channel Outputs 4 optically Isolated Inputs USB/Wireless Relay + OLED Display

15W Isolated Dual Power Supply 5-32 to +-12V 15V 24V 30V DC DC Boost-Buck

32CH NPN/PNP Optically Isolated Input & 32CH 300MA NPN Solid State Relay

Victron Orion-TR DC-DC Converter - 12 VDC to 12 VDC - 9AMP Isolated

1000V Optically Isolated 8-channel DMX512 Signal Relay Amplifier LED controller

DC 8DI-8DO NPN/PNP Optically Isolated Input & 300MA NPN Solid State Relay

ANALOG DEVICES 7B32-01-1 ISOLATED POWERED CURRENT INPUT In 4-20mA Out 1-5V