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Compact 75% wireless mechanical keyboard in gradient gray with rotary knob and RGB backlighting

RedThunder K75 Wireless Mechanical Gaming Keyboard 75% Hot-Swappable Gradient Gray

SKU CH-FZC9-MJQ2M

Compact 75% wireless mechanical keyboard with hot-swappable linear switches, RGB backlighting, and a multi-function knob for versatile control

  • Product nameK75
  • Keyboard connectionBluetooth
  • Wrist restK75 TKL
  • Function key count8
  • Mechanical keyboardK75 Keyboard / Linear
  • Keyboard switchesLinear
  • Compact 75% layout saves desk space while keeping essential keys
  • Triple-mode connectivity (wired, Bluetooth, 2.4G) enables flexible device pairing
  • Gasket mount with five-layer padding reduces noise and resonance for a softer feel
  • Hot-swappable PCB supports 3-pin and 5-pin switches without soldering
  • Multi-function knob provides quick access to volume and media controls

Compact 75% Layout

The RedThunder K75 is a wireless mechanical gaming keyboard with a compact 75% layout that saves desk space while keeping essential keys. It uses a gasket mount structure with five layers of padding to reduce noise and resonance for a softer typing feel. Pre-lubed linear switches and side-engraved PBT keycaps come standard, and the hot-swappable PCB accepts both 3-pin and 5-pin switches without soldering. A multi-function knob and full RGB backlighting round out the feature set.

Triple-Mode Connectivity for Multi-Device Users

This keyboard suits users who switch between Windows, macOS, tablets, phones and consoles using wired, 2.4 GHz wireless or Bluetooth connections. Two top-mounted switches toggle modes instantly, and three Bluetooth channels can be paired simultaneously. The hot-swappable design appeals to enthusiasts who want to experiment with different switches, though the supplier notes it is not recommended for keyboard beginners. Buyers who need a full-size layout with a dedicated number pad should look elsewhere.

Hot-Swappable PCB with Pre-Lubed Linear Switches

The defining specification is the hot-swappable PCB that supports 3-pin and 5-pin mechanical switches without soldering. It ships with pre-lubed linear switches and includes spare switches plus a key puller for immediate customisation. This single feature determines whether the board matches a buyer who wants to tailor the typing experience or one who prefers a fixed, non-modular keyboard.

How it compares

Measured against everything we stock in Keyboards for PC Gaming, at today’s prices. Recalculated every night.

Price $86.99
Pricier than about 61% of the 3,966 comparable items (median $68.99).

Specifications

Product
Brand nameRedThunder
Product lineK75
Model nameK75
Product nameK75
Keyboard colorGradient gray
Product typeWired
Mouse colorGray
Performance
Tracking technologyHot-Swappable
Supported distance12.8 L x 5.71 W x 1.77 H inches
Connectivity
Keyboard connectionBluetooth
Mouse connectionBluetooth
Power
Power typeWired
Run timeRechargeable Battery (USB Powered), true
Size & build
Main materialPlastic
Function key count8
Mechanical keyboardK75 Keyboard / Linear
Keyboard switchesLinear
Switch typeLinear
Product dimensions12.8 in × 5.71 in × 1.77 in
HandednessAmbidextrous
Compatibility
RequirementsBluetooth
In the box
Includes mouseK75 TKL
More details
Wrist restK75 TKL
BacklightingRGB
Button count8
Scroll typeProgrammable Keys

Questions about this item

What are the exact dimensions of the keyboard so I can confirm it fits my desk space?

The keyboard measures 12.8 in wide, 5.71 in deep and 1.77 in high, making it a compact 75% layout that saves desk space while keeping essential keys.

How do I install new switches on the hot-swappable PCB and what is the common mistake to avoid?

Pull the existing switch straight up with the included puller, align the new 3-pin or 5-pin switch pins with the socket and press down firmly; the frequent error is inserting pins crooked, which bends them and prevents contact.

Which components will need replacement over time and what spares are included?

The pre-lubed linear switches are the main wear item; the box includes spare pre-lubed switches and a keycap puller so you can swap individual switches without soldering when they degrade.

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