USB Relay Module 4 Channel USB Hub Powered

Super4 USB Relay Module

USB hub powered, modular 4-channel relay control board with sealed Omron relays and unique per-board serial number identification.

Specifications

Relays — 4 × sealed Omron mechanical relays
Contact rating — 5 A @ 30 VDC / 5 A @ 250 VAC
Connectors — Phoenix Contact terminal blocks
Interface — Direct USB (not virtual COM port)
USB chipset — FTDI, DLL support for most operating systems
Power — USB hub powered, no external supply required
Identification — Unique serial number per board (changeable via RelayMapper)
Indicators — Power LED + individual relay status LEDs
Cable — Not included

Features

Direct USB connection — no virtual COM port driver required
Each board uniquely identified by serial number — multiple boards on one host
Serial number changeable via RelayMapper application for easy board swapping
Command-line application control — scriptable from any language or shell
Sealed Omron relays — reliable and long service life
Phoenix Contact terminal blocks — secure, tool-free wiring
Works on Windows, Linux, macOS, and Raspberry Pi

Documentation

User Manual PDF Download
Software Guide PDF Download

Windows

Super4 Relay Installer Windows · EXE Download
RelayMapper v2.8 · ZIP Download
DLL 32-bit v1.2 · ZIP Download
DLL 64-bit v1.0 · ZIP Download
DLL v2.6 ZIP Download
RelaySet ZIP Download

Linux

Ubuntu Package tar.gz Download
FTDI Library libftd2xx.so Download
lrelayset Linux binary Download
C Example main.c Download
Relay Script Shell script Download

Raspberry Pi

Python Demo super4demo.py Download

Code Examples

C++ Example 05 Mar 2023 · ZIP Download
C# Example ZIP Download
Visual Basic .NET ZIP Download
VB6 Example ZIP Download
Java Example 27 Jul 2008 · ZIP Download

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