OpenCorsairLink is a command-line tool to monitor and control the fan speed, LED colour and pump volumes of specific Corsair power supplies and cooling solutions.

To allow this snap access to your device(s), issue the following connection commands:

$ sudo snap connect opencorsairlink:raw-usb
$ sudo snap connect opencorsairlink:hardware-observe


To set your own custom fan curve for a specific set of temperatures, use the following command:

$ sudo opencorsairlink --device 1 --fan channel=1,mode=6,temps=0:35:45:50:55:60,speeds=0:0:55:60:75:100

To set LED colors and mode:

$ sudo opencorsairlink --device 0 --led channel=0,mode=0,colors=00FF00

To set pump cooling mode:

$ sudo opencorsairlink --device 0 --pump mode=5

OpenCorsairLink is unofficial and is not endorsed or affiliated with Corsair.

General options:

  • --help: prints this message
  • --version: displays version
  • --debug: displays enhanced Debug Messages
  • --dump: implies --debug, dumps the raw data received from the device.
  • --machine: prints status in a machine readable format
  • --device : specify selected device
  • --led: control LED modes alongside standard, error and warning colors
  • ---fan: set fan mode and create speed profiles
  • --pump: set pump cooling mode

LED (--led) options: (after specifying a device):


  • channel= : selects LED channel to configure. Accepted values are 1 or 2.
  • mode=:
    • 0: static
    • 1: blink (Only Commander Pro and Asetek Pro)
    • 2: color Pulse (Only Commander Pro and Asetek Pro)
    • 3: color Shift (Only Commander Pro and Asetek Pro)
    • 4: rainbow (Only Commander Pro and Asetek Pro)
    • 5: temperature (Only Commander Pro, Asetek, and Asetek Pro)
  • Colors: , defines the LED color
  • Warn: , defined the warning LED color
  • Temps: , defines the warning temperature LED color

Fan (--fan) options: (after specifying a device):


  • channel= : selects a fan to setup. Accepted values are 1, 2, 3 or 4.
  • mode=:
    • 0: fixed PWM (requires the PWM to be specified)
    • 1: fixed RPM (requires the RPM to be specified)
    • 2: default
    • 3: quiet
    • 4: balanced
    • 5: performance
    • 6: custom Curve
  • PWM : the desired PWM for the selected fan. NOTE: only with fixed PWM
  • RPM : the desired RPM for the selected fan. NOTE: with fixed RPM
  • For Custom Curves:
    • Temps : define Celcius temperatures for fan
    • Speeds : define RPM percentages for fan

Pump (--pump) options: (after specifying a device): -mode=:

  • 0: quiet
  • 1: balanced
  • 2: performance

Without options, OpenCorsairLink will show the status of any detected Corsair Link device.


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