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USB Relay Controllers

USB Relay boards from NCD are trusted by industry for computer control applications backed with a 5-year warranty.  We manufacture in the United States and we can customize our USB Relay devices for your exact application.

  • Simple implementation
    • Interface mounts as virtual COM port
    • Compatible with any operating system
  • Industry Leading Command Set
    • Send Specific Commands to Trigger Relays
    • Trigger Any or All Relays
    • Program in any Language
  • Wide Range Of Option
    • 1,2,4,8,16 USB Relays Controller
    • 24,32,64 Channel USB Relays Module
    • USB Relay Module With Analog Inputs
    • USB Relay Controller With GPIO Digital I/O
  • Wide Range Of Option
  • Base Station Software
    • Point & Click Interface
    • Read Sensor Levels
    • Read Status of Relays
    • Manually Trigger Relays

USB Relay Devices

Our full line of USB compatible controllers suit nearly any application, and our USB modules come with a long history of proven stability. Customize your project with exactly the options you need. From General Purpose, High Power or Signal Switching, we have you covered with our SPDT, DPDT, and SPST Relays. The versatility of our USB relay controllers ensures an easy and reliable solution to whatever your switching needs.

USB Relay Controller
1-Channel Relay Controller with USB
USB Relay Controller 2-Channel with ADC
2-Channel Relay Controller with USB
USB Relay Controller 4-Channel with ADC
4-Channel Relay Controller with USB
USB Relay Controller 8-Channel with ADC
8-Channel Relay Controller with USB
USB Relay Controller High Current
1-Channel High Current USB Relay
USB Relay Controller 2-Channel High Current with ADC
2-Channel High Current USB Relay
USB Relay Controller 4-Channel High Current with ADC
4-Channel High Current USB Relay
USB Relay Controller 8-Channel High Current with ADC
8-Channel High Current USB Relay
USB Solid State Relay Controller
USB 1-Channel Solid State Relay Controller
USB Relay Controller 2-Channel Solid State Relays
USB 2-Channel Solid State Relay Controller
USB Relay Controller 4-Channel Solid State Relays
USB 4-Channel Solid State Relay Controller
USB Relay Controller 8-Channel Solid State Relays
USB 8-Channel Solid State Relay Controller

USB Relay Controllers with 16 or More Relays

NCD manufactures the largest USB Relay controllers in the world, with options for 16, 24, 32, 48, 56, and 64 on-board relays.  Expansion options allow NCD relay controllers to scale up to 256 channels.  Dual interface options are also available on the Fusion series controllers, allowing two USB ports to control the entire array of on-board and off-board expansion relays.

On-Board GPIO and Analog Inputs

Most NCD controllers come equipped with Analog inputs.  These analog inputs may be used to read external sensors.  Analog inputs may be software configured for 8-Bit or 10-Bit resolution, allowing for highly accurate analog sensor measurement applications.  Analog inputs may be re-configured for manual control of on-board relays.  Simply connect a button to the on-board analog inputs and turn relays on or off when the button is pressed.  Fusion series controllers are equipped with 16 analog inputs that may be software configured as GPIO.  Use analog inputs for sensor monitoring and control applications or re-program the analog inputs for TTL Input and Output (GPIO) control.  Fusion controllers are equipped with two communication interface ports, allowing multiple computers to monitor and control on-board relays.  Fusion controllers also include many functions to automatically control relays when external sensor reach pre-defined set-points.  NCD Reactor series controllers offer a lower-cost alternative to Fusion, with some automation features and control of up to 8 on-board relays.  All Reactor inputs are 8-bit analog.

How It Works

All USB devices are equipped with our proprietary firmware built into the board. This will allow you to Control one relay at a time, a bank of relays or all relays at once with manual and automatic refreshing command set. You can send commands can be sent over the virtual COM port, or our Base Station software. We make integrating into existing systems, or building entirely new ones quick and painless.

USB Modules

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