This low cost, general purpose, USB powered board has  16 relays + 8 general purpose DIO channels + 8 channels that can be selected as either relay or DIO channels (via onboard links).  Relays & PCB tracking are designed to handle 240VAC@10A.  Suitable for a wide range of control and mains voltage power switching purposes, it also offers screw terminal access to the USB power connections for possible onward powering/use in your target system.

Relay & DIO control/activation is via simple ASCII/Hex characters.  The USB card appears as a ‘virtual com port’ when connected to your system.  All relay contacts are connected to two-part screw terminal blocks along each side of the card.  These allow rapid connect/ disconnect or swap-over in your target system.   5VDC power connection is made via a 2 way screw terminal block or 2.1mm jack socket.  The card is stackable, via corner fixing holes.  Available with a Perspex cover and DIN rail mount option if required.

DIO channels are normal logic level signals (+5V max) and can supply up to 20mA per channel.  Access to all relay contacts and DIO channels is via 2 part (male/female) screw terminal block connectors positioned  along two edges of the card. 

The board comes with +5V & relay/DIO channel LED status indicators.  The USB +5V will support up to 8 relays being activated simultaneously.  *An external +5V PSU is required if more than 8 relays need to be activated at the same time,  Nylon feet are fitted in each corner which will take self tapping screws.  They can easily be removed to allow the cards to be mounted on pillars or stacked.  There is also a perspex cover available (see below) which offers general protection of the card and prevents accidental contact with any of the relay contacts 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 8
Relay contact current 10A
Digital input channels 16
Relay Type POWER
Digital output channels 16
Connector TWO-PART CONNECTORS HORIZONTAL

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USB16PRMxN

  • Brand: Easydaq
  • Product Code: USB16PRMxN
  • Availability: In Stock
  • £105.32


  • 10 or more £94.79
  • 25 or more £90.05
  • 50 or more £87.77
  • 100 or more £85.60
  • 250 or more £83.41
  • 500 or more £81.21

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Tags: Power, 16 relay, relay board, USB, USB16PRMxN, Free shipping, EasyDAQ, UK