HKD 8 Channel 12V USB Relay Control Board Plug & Play Module

The HKD 8 Channel 12V Relay USB Control Board is a versatile, computer-controlled relay module designed for intelligent automation and power management applications. It uses HID technology, meaning no drivers are required-simply plug and play for instant operation. Compatible with Windows 7, XP (32-bit/64-bit) systems, it provides a simple and stable solution for switching electrical devices via USB.

Built with high-performance imported USB control chips, a ULN2803 relay driver, and genuine relays, this board ensures long-lasting reliability and stability. Its dual power supply options (socket or terminal) make it flexible for different setups, and it retains relay status even if the USB is disconnected or the PC is powered off.

This module is widely used in home automation, hotels, smart greenhouses, industrial equipment control, mall lighting, street light management, timing management in internet cafés or karaoke systems, and centralized power management systems.

Features:

• 8-channel relay board with USB computer control
• Plug & play HID technology - no driver installation required
• Stable onboard square USB interface
• High-performance imported USB control chip
• ULN2803 relay driver for stable switching
• Genuine relays for durability and reliability
• Military-grade PCB for robust performance
• Retains relay state even if USB is disconnected or PC is off
• Flexible dual power supply connection (socket & terminal)

Specifications:

• Input Voltage: DC 12V
• Input Current: 300mA
• Relay Contacts: NC / COM / NO
• Relay Ratings:
  Max AC Load: 250V / 10A
  Max DC Load: 30V / 10A
• OS Support: Windows 7, XP (32/64-bit)
• Channels: 8

What's in the box
1 x 8 Channel 12V USB Relay Module