Low cost, general purpose, USB powered 24 channel relay board.  Can be commanded via simple ASCII character commands - example programs available for download in several programming languages.  PC, MAC & Linux compatible.  

This unit contains 30VDC, 1Amp relays, contacts are silver alloy with a silver gold overlay.  Quotes can be provided for gold contact relays. Suitable for a wide range of control or signal switching purposes, the PCB tracking is designed to handle 240VAC @ 10amps.

Access to all relay contacts via two part (male/female) side entry, screw terminal blocks mounted  along each edge of the card.  The cards are designed to be stacked, with the side entry connectors allowing for rapid assembly & dismantling.    Power & channel status indicators are visible along one end of the card.

Supplied with nylon feet in each corner which will take self tapping screws or allow the card to be sat on a surface.

The board can be powered from the USB port, (maximum of 8 relays activated at any one time) or the relays can be isolated from the USB +5V (via a jumper link) and the relays powered from an external +5V supply, in which case all relays can be activated.

A perspex cover/base is available which offers general protection of the card and prevents accidental contact with any of the pcb connections or screw terminal connections.  In addition, there is a DIN rail mount/cover option available.

These are industry standard relay boards and products.  High quality, for professional electronic  automation,  connectivity, and control.

Easydaq products are used in research and education, security, industrial applications, power and energy management,  motor and device  control. There are uses across various industries, including  maritime , rail,  automotive, automation, measuring and calibration, agriculture , medical, sanitation, light and power solutions, fire protection, security, and many more.

You can order any of our boards with customisations or without connectors fitted - contact us for prices

Download datasheet

EasyDAQ is primarily a business-to business seller, supplying products around the world, therefore advertised prices exclude VAT. Customers in the UK and Northern Ireland will be charged VAT  at checkout. 

Operational Parameters
Manufacturer EASYDAQ
Control Interface USB
Relay coil voltage 5V
Relay Channels 24
Relay contact current 1A
Relay Type SIGNAL
Opto-isolated YES

USB24SRMx

  • Brand: Easydaq
  • Product Code:USB24MxS
  • Availability:In Stock
  • £139.27


  • 10 or more £111.42
  • 25 or more £98.88
  • 50 or more £92.75
  • 100 or more £87.18
  • 250 or more £81.47
  • 500 or more £75.48

Related Products

CoverUSB24MxDIN

CoverUSB24MxDIN

A Perspex cover for the 24 relay  board range, the NET 16 and any other boards with the same..

£63.72

CoverUSB24Mx

CoverUSB24Mx

CoverUSB24Mx. A Perspex cover which offers general protection of the card.This cover will also fi..

£48.72

Suppressor_250VAC

Suppressor_250VAC

Recommended for use across relay contacts in 120/240VAC mains switching applications.  (Minimis..

£22.50

Tags: USB24SRMx, 24-SIGNAL-Relay-Board, EasyDAQ,