Skip to main content
eBay logo

Shop by category

Advanced
    • Nectar
    • Daily Deals
    • Brand Outlet
    • Help & Contact
    • SummerSavings
    • Sell
    • Watch ListExpand watch list
      Loading...
      Sign in to see your user information
    • My eBayExpand My eBay
      • Summary
      • Recently Viewed
      • Bids/Offers
      • Watch List
      • Purchase History
      • Selling
      • Saved Searches
      • Saved Sellers
      • My Garage
      • Messages
      • Collect & Spend
        Learn more
    • Expand Basket
      Loading...
      Something went wrong. View basket for details.
    {"modules":["unloadOptimization","bandwidthDetection"],"unloadOptimization":{"browsers":{"Firefox":true,"Chrome":true}},"bandwidthDetection":{"url":"https://ir.ebaystatic.com/cr/v/c1/thirtysevens.jpg","maxViews":4,"imgSize":37,"expiry":300000,"timeout":250}}
    {"delay":300}

    There seems to be a problem completing the request at present.

    You are here

    • eBay
    • usb relay controller

    usb relay controller

    Side Refine Panel

    • All

    • Auction

    • Buy it now

    • Best Match
    • Price + postage: lowest first
    • Price + postage: highest first
    • Lowest price
    • Highest price
    • Time: ending soonest
    • Time: newly listed
    • Distance: nearest first
    • List view

    645 results

    • Timing Delay Timer Relay 5-30V Power Control Module Trigger Switch Micro USB -UK

      Timing Delay Timer Relay 5-30V Power Control Module Trigger Switch Micro USB -UK

      £3.90
      or Best Offer
    • New 5V USB Relay 2 Channel Programmable Computer Control For Smart Home

      New 5V USB Relay 2 Channel Programmable Computer Control For Smart Home

      £6.04
      Click & Collect
      50 sold
    • 5V USB Relay 1 Channel Programmable Computer Control For Smart Home - UK seller

      5V USB Relay 1 Channel Programmable Computer Control For Smart Home - UK seller

      £6.80
      Click & Collect
    • 5Gang 12V LED Light Switch Control Panel Voltmeter USB Charger Car Campervan RV

      5Gang 12V LED Light Switch Control Panel Voltmeter USB Charger Car Campervan RV

      £17.69
      Click & Collect
      Free postage
      11 watching
    • 5V USB Relay 2 Channel Programmable Computer Control For Smart Home New

      5V USB Relay 2 Channel Programmable Computer Control For Smart Home New

      £5.93
      £1.30 postage
      or Best Offer
    • KMTronic USB 8 Channel Relay Board, RS232 Serial controlled

      KMTronic USB 8 Channel Relay Board, RS232 Serial controlled

      4 out of 5 stars (6)6 product ratings - KMTronic USB 8 Channel Relay Board, RS232 Serial controlled
      £55.42
      £17.13 postage
      259 sold
    • KMTronic USB Relay Controller - Four Channel with Clips for DIN Mount Rail

      KMTronic USB Relay Controller - Four Channel with Clips for DIN Mount Rail

      £42.00
      £15.60 postage
    • 5V~30V Micro USB Power Relay Timer Control Module Trigger Delay Switch AM

      5V~30V Micro USB Power Relay Timer Control Module Trigger Delay Switch AM

      £1.19
      £1.30 postage
      or Best Offer
      85 sold
    • 5V -30V Micro USB Power Delay relay Timer control module Trigger delay switch

      5V -30V Micro USB Power Delay relay Timer control module Trigger delay switch

      £1.20
      £1.30 postage
      or Best Offer
      138 sold
    • KMTRONIC SINGLE 1 ONE CHANNEL USB RELAY BOARD COMPUTER PC CONTROLLER MODULE

      KMTRONIC SINGLE 1 ONE CHANNEL USB RELAY BOARD COMPUTER PC CONTROLLER MODULE

      £3.95
      £1.70 postage
    • 5V USB Relay 2 Channels Board Module Computer PC Smart Control Switch Controller

      5V USB Relay 2 Channels Board Module Computer PC Smart Control Switch Controller

      £4.79
      £1.80 postage
      Only 1 left.
    • KMTRONIC SINGLE 1 ONE CHANNEL USB RELAY BOARD COMPUTER PC CONTROLLER MODULE

      KMTRONIC SINGLE 1 ONE CHANNEL USB RELAY BOARD COMPUTER PC CONTROLLER MODULE

      £3.95
      £1.70 postage
    • KMTronic USB > RS485 > 40 Channel Relay Board (controller)

      KMTronic USB > RS485 > 40 Channel Relay Board (controller)

      £223.00
      £13.00 postage
    • 1/2/4/8 Ch 5V 10V USB Relay Programmable Computer Control Relay For Smart Home M

      1/2/4/8 Ch 5V 10V USB Relay Programmable Computer Control Relay For Smart Home M

      £5.84 to £11.93
      £1.96 postage
      111 sold
    • USB 5V Relay 2 -Channel Programmable Computer Control For Smart Home

      USB 5V Relay 2 -Channel Programmable Computer Control For Smart Home

      £8.36
      £1.96 postage
      or Best Offer
      139 sold
    • Micro USB 5V - 30V Trigger Delay Relay Module Power Tool Timer Control Switch

      Micro USB 5V - 30V Trigger Delay Relay Module Power Tool Timer Control Switch

      £6.07 to £18.74
    • KMTronic USB > RS485 > 16 Channel Relay Board (controller)

      KMTronic USB > RS485 > 16 Channel Relay Board (controller)

      £123.60
      £15.60 postage
    • 5V USB Relay 2 Channels Board Module Computer Smart Control Switch Controller Ki

      5V USB Relay 2 Channels Board Module Computer Smart Control Switch Controller Ki

      £5.99
      Free postage
    • KMTronic USB > RS485 > 32 Channel Relay Board (controller)

      KMTronic USB > RS485 > 32 Channel Relay Board (controller)

      £183.00
      £13.00 postage
    • 5V USB Relay 2 Channel Programmable Computer Control For Smart Home

      5V USB Relay 2 Channel Programmable Computer Control For Smart Home

      £8.60
      Was: £9.06
      £2.01 postage
      or Best Offer
      294 sold
    • Digital LED Trigger Delay Cycle Timer Control Switch Relay Module Micro USB 5V

      Digital LED Trigger Delay Cycle Timer Control Switch Relay Module Micro USB 5V

      £3.56
      Was: £3.79
      £1.96 postage
      or Best Offer
      366 sold
    • MICRO USB 5V 2-Channel Relay Module USB Control Relay Module Serial Port

      MICRO USB 5V 2-Channel Relay Module USB Control Relay Module Serial Port

      £7.50
      Click & Collect
      Free postage
    • 5V -30V Micro USB Power Timer Control Module Delay Relay Trigger Delay Switch

      5V -30V Micro USB Power Timer Control Module Delay Relay Trigger Delay Switch

      £6.07
      Free postage
      or Best Offer
    • 5V USB Relay 1 Channel Programmable Computer Control For Smart Home M

      5V USB Relay 1 Channel Programmable Computer Control For Smart Home M

      £7.88
      Was: £8.38
      £1.96 postage
      or Best Offer
      172 sold
    • 5V/12V USB Relay 1/2/4/8 Ch Programmable Computer Control Relay For Smart Home

      5V/12V USB Relay 1/2/4/8 Ch Programmable Computer Control Relay For Smart Home

      £8.39 to £12.78
      £1.79 postage

    Results pagination - page 1

    1. 1
    2. 2
    3. 3
    4. 4
    5. 5
    6. 6
    7. 7
    8. 8
    9. 9
    10. 10

    Additional site navigation

    • About eBay
    • Announcements
    • Community
    • Safety Centre
    • Seller Centre
    • VeRO: Protecting Intellectual Property
    • Policies
    • Help & Contact
    • Site Map
    Copyright © 1995-2022 eBay Inc. All Rights Reserved. User Agreement, Privacy, Cookies and AdChoiceNorton Secured - powered by DigiCert