What shortcut keys are built into the Redragon K668, and can they be customized?

It includes 4 shortcut keys for Mute, Calculator, Screenlock, and Desktop by default, and they can also be redefined through the software.

Does the Redragon K668 keyboard support hot-swapping, and what kind of switches does it use?

Yes. It uses hot-swappable red switches and is described as being compatible with almost all switch types in the market, including both 3-pin and 5-pin switches.

Questions & Answers: Redragon K668 RGB Gaming Keyboard, 108 Keys Wired Mechanical Keyboard w/Extra 4 Hotkeys, Sound Absorbing Foams, Upgraded Hot-swappable Socket, Mixed Color Keycaps x 2 Sets, Red Switch

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Redragon K668 RGB Gaming Keyboard, 108 Keys Wired Mechanical Keyboard w/Extra 4 Hotkeys, Sound Absorbing Foams, Upgraded Hot-swappable Socket, Mixed Color Keycaps x 2 Sets, Red Switch

4 Extra Hotkeys, Full-Size 108-Key Anti-Ghosting - Dedicated shortcut keys default to mute, calculator, screen lock and desktop, while 104 keys register accurately even during rapid multi-key combos.
Swap Switches Without Soldering, Smooth and Quiet - The upgraded socket accepts almost any 3-pin or 5-pin switch, and stock Red linear switches keep clicks discreet for shared spaces.
Vibrant RGB for a True eSports Vibe - Up to 19 preset lighting modes with adjustable brightness and flow speed, including a music-sync mode that lights up in time with your desktop audio.
Ergonomic 2-Stage Feet, 2 Sets of Mixed Color Keycaps - Adjustable feet relax your wrists during long sessions, and two included keycap sets let you swap looks whenever you want a fresh vibe.
Pro Software for Even Deeper Customization - Reassign the 4 hotkeys to your own shortcuts, design custom lighting effects, and program macros with your own keybindings.

$49^.99 –