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Green circuit board with multiple relay modules and USB port

Traditions (Generic)

Traditions (Generic) 4/8 Way Programmable Computer Control Module DC 12V USB Control Switch-Free Relay Module

SKU CH-R1B8-GRQXN

A 12V USB-programmable relay module provides four or eight switch-free channels for home automation

  • 4 or 8 programmable channels for flexible home automation
  • DC 12 V operation suits common low-voltage power supplies
  • USB computer control enables software-driven switching
  • Switch-free relay design provides silent solid-state operation

4/8 Way USB Relay Module

This programmable control module connects to a computer via USB and provides four or eight independent relay channels that switch at 12 V DC. It is intended for hobbyists and system integrators who want software-driven control of external devices without manual switches.

USB Power and Channel Limits

The module draws its control power from the USB connection, so the host port must supply sufficient current for the chosen channel count. Each relay is rated for 12 V DC switching only; higher voltages or AC loads are not supported by this design.

How it compares

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Price $15.99
Pricier than about 90% of the 1,208 comparable items (median $9.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Should I choose the 4-way or 8-way version of this control module?

The module is programmable for either 4 or 8 ways, so you select the channel count that matches the number of devices you need to switch.

What does the 12 V DC rating mean when the module is connected to a computer via USB?

The 12 V DC supply powers the relay coils, while the USB link provides the control signals from the computer to activate each channel.

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