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Small green circuit board with USB plug and blue relay cube

YINGHUA

YINGHUA USB 1 Channel 5V Relay Module international power cord

SKU CH-79FS-ZK5SA

A USB relay module that switches a single 5 V circuit on or off from a computer without installing drivers

  • HID drive-free operation means no extra drivers needed
  • Single USB channel controls one 5 V relay on/off
  • Direct computer-side relay switching for simple automation
  • New condition ensures reliable out-of-the-box performance

USB HID Relay Module

This USB HID relay module provides a single 5 V switching channel that is controlled directly from a computer without installing drivers. It appears as a standard HID device, so software can toggle the relay on or off through simple USB commands. The board is suited for hobbyists, test engineers and anyone automating low-voltage loads from a PC.

Driver-Free Automation Upgrade

The module replaces custom microcontroller firmware or parallel-port adapters that previously required bespoke drivers or legacy ports. It is worth adopting when a project needs immediate cross-platform USB control of one relay without writing kernel-level code. Buyers who need multiple independent channels or higher contact ratings should look for a multi-relay alternative.

Highlights

  • HID drive-free operation means no extra drivers needed
  • Single USB channel controls one 5 V relay on/off
  • Direct computer-side relay switching for simple automation
  • New condition ensures reliable out-of-the-box performance

Specifications

No published specifications for this item yet.

Questions about this item

What USB connector does the module use to plug into the computer?

The module connects via a standard USB-A plug, so any free USB-A port on the computer will accept it directly.

Does the relay require a separate driver installation before it can be controlled?

No, the module is HID drive-free; the operating system recognises it as a standard USB HID device and it works immediately without extra software.

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