4 Channel 12V USB Relay Module PC Intelligent Controller (USB Computer Control Switch Board)

The 4 Channel 12V USB Relay Module is a PC-controlled relay board designed for computer-based automation, remote switching, and industrial control applications. It connects directly to a computer via a USB interface, allowing independent control of four electromechanical relay channels through compatible PC software. The module features a driver-integrated design, eliminating the need for external relay driver circuits and simplifying system integration.

This intelligent USB relay controller is ideal for home automation, industrial equipment, laboratory testing, power management, embedded systems, and remote control applications requiring reliable switching of AC or DC loads.

Key Features -

• Four independently controlled relay channels

• 12V DC relay operation

• USB interface for direct PC connectivity

• Driver-integrated design for simplified control

• Independent ON/OFF switching for each relay

• LED indicators for relay status monitoring

• Plug-and-play operation with compatible software

• Reliable electromechanical relay switching

• Compact PCB design for easy installation

• Suitable for automation, testing, and remote control applications

Specifications -

• Product type - USB Relay Controller Module

• Channel count - 4 Channels

• Relay coil voltage - 12V DC

• Control interface - USB

• Relay type - Electromechanical Relay

• Control method - PC Software Control

• Status indication - LED Indicators

• Driver circuit - Integrated Onboard Driver

• Package / Mounting type - PCB Module

• Application - Remote Switching and Automation

Applications -

• Industrial automation systems

• Home automation projects

• Remote power switching

• Laboratory automation and testing

• Computer-controlled electrical equipment

• Smart control systems

• Embedded automation projects

• Security and access control systems

• Device power management

• Educational and research projects