DC 5V 4-Channel USB Control PC/PLC Controlled Relay Module

ThisDC 5V 4-Channel USB Control Relay Module is designed for controlling external devices through a USB connection with a PC, PLC, or microcontroller. It enables easy automation and control of up to four independent electrical loads such as lamps, motors, fans, or other appliances via computer software or commands. Ideal for industrial automation, home automation, testing, and development applications.

Features

• 4-channel relay control via USB interface
• Each relay supports up to 10A at 250V AC or 30V DC
• Fully opto-isolated inputs for safe and reliable operation
• Built-in USB to serial conversion (CH340/FT232 chip)
• LED indicators for each relay status
• No external power supply needed powered via USB
• Supports Windows/Linux with appropriate driver/software
• Compatible with PLCs, PCs, and microcontrollers

Applications

• PC-based industrial automation
• Home automation and smart control
• Testing and development environments
• Remote device switching via USB
• Relay control for lighting, fans, pumps, etc.

Specification