Redragon Kumara K552 RGB keyboard

Backlight modes

x = switch 3 backlight modes
FN+INS, x, Trial of light, Breathing, Normaly on
FN+HOME, x, Ripple graff, Pass without trace, Coastal
FN+PGUP, x, Hurricane, Accumulate, Digital times
FN+DEL, x, Go with stream, Clouds fly, Winding Paths
FN+END, x, Flowers, Snow, Swift
FN+PGDN, x, Both ways, Surmount, Fast and the furious

Keyboard function

FN+WIN, Lock windows and app function, repeat to unlock
FN+'-+', 4 level speed adjust
FN+'<-', adjust backlight running direction
FN+'->', adjust backlight color, colors switching by circle
FN+'up','down', 4 level brightness adjustable
FN+PRTSC, To restore default as flow mode

Multi-media keys

FN+F1 = Open media player.
FN+F2 = Volume down.
FN+F3 = Volume up.
FN+F4 = Mute.
FN+F5 = Stop.
FN+F6 = Previous track.
FN+F7 = Play / Pause.
FN+F8 = Next track.
FN+F9 = Open mailbox.
FN+F10 = Open browser homepage.
FN+F11 = Calculator.
FN+F12 = Search.


First impression

Louder than expected, flashy (can be toned down), slightly higher than expected (would need some sort of hand rest thing), extremely cool looking. Keys are slightly wider than my previous (default macos) keyboard, which will require some adjusting. This works in Linux as expected without any kind of hacking.

Openbox rc.xml

This inside

<!-- redragon -->
<keybind key="XF86AudioRaiseVolume">
  <action name="Execute">
    <command>amixer sset Master,0 5+</command>
<keybind key="XF86AudioLowerVolume">
  <action name="Execute">
    <command>amixer sset Master,0 5-</command>
<keybind key="XF86AudioMute">
  <action name="Execute">
    <command>amixer sset Master,0 toggle</command>
<!-- redragon end -->

will give some FN+f2/f3/f4 action.