8-Channel USB Relay Card Kit

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$61.95 ea

Call 1-800-831-4242

  • Jameco Part no.: 2123952
  • Manufacturer: Velleman
  • Manufacturer no.: K8090
  • NCNR (Non-Cancelable, Non Returnable)
  • HTS code: 8543909500
  • Electronics Parts Locator

8-Channel USB Relay Card Kit

Can also be controlled with an iPhone/iPad app

Eight relay channels controlled by your computer! Use your computer USB port to connect to the outside world. Connect up to 16A to each of the high power relays. Board space for extra VDR noise suppressors is provided and on board push buttons can be used to test/operate all the relays.

A dll for own software development can be downloaded from our web site. Test software completes the package.

Note: This product needs to be assembled. Soldering iron activity required.


  • Expert level kit with 124 pieces
  • USB-controlled relay card
  • Manual operation for toggle, momentary or timer operation (selectable through
  • software)
  • Timer settings up to 18 hours (DLL function)
  • Optional open collector connectivity (push button simulation
  • DLL for own software development (download only)
  • Event-driven and open protocol
  • Two way PC communication (USB Event return)
  • Optional VDR (type VDR300) transient suppression for use with inductive loads
  • LED indication for power and relay action
  • Minimum system requirements:
    • PC running USB compatible Windows version
    • USB1.1 and USB2.0 full speed compatible
    • Internet connection for software download
  • Optional DIN rail enclosure: B8006 (Note: cut out the USB connector)


  • Power supply for relays: 9-10Vac or 12 to 14Vdc (500mA), example: 252808
  • 8 high-power relays: 16A each (resistive load)
  • HF115F-1 012-1ZS3A Relay, Contact: SPDT
  • Dimensions: 160 x 107 x 30mm / 6.3 x 4.2 x 1.2"
Extra information:
  • Software Package for K8090. (Download and install this software before using the K8090)
  • iPhone / iPad / iPod application
    (Wifi remote controller for the Velleman kit K8090.)
Download the application here:
K8090/VM8090 iPhone / iPad / iPod Application download

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