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RK ROYAL KLUDGE M75 Mechanical Keyboard with OLED Smart Display and Volume Knob, 2.4G/USB-C/BT Gasket Mounted 75% Layout Wireless Gaming Keyboard with 81 Keys, RGB Backlit Hot-Swappable Brown Switch
RK ROYAL KLUDGE

RK ROYAL KLUDGE M75 Mechanical Keyboard with OLED Smart Display and Volume Knob

Bottom line: The RK ROYAL KLUDGE M75 Mechanical Keyboard: OLED display shows battery level, connection mode, and volume at a glance; main trade-off: 75% layout has no numpad, a drawback for heavy number entry.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For keyboards, mice, headsets and other PC peripherals, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ OLED display shows battery level, connection mode, and volume at a glance
  • ✓ Rotary knob adjusts volume, switches modes, and powers the keyboard
  • ✓ Gasket mount with four sound-absorbing layers reduces noise and vibration
  • ✓ Hot-swappable PCB accepts 3-pin and 5-pin switches, no soldering needed
  • ✓ Tri-mode: 2.4G, USB-C wired, and Bluetooth for up to 3 devices

Cons

  • ✗ 75% layout has no numpad, a drawback for heavy number entry
  • ✗ Brown switches are tactile, not linear or clicky; you must swap to change
  • ✗ Lighting customization depends on RK software
  • ✗ Battery capacity and rated runtime are not stated in the listing

Manufacturer description

The RK ROYAL KLUDGE M75 is a 75% wireless mechanical keyboard built around a small OLED smart display and a rotary knob. The screen shows battery level, connection mode, and volume. The knob adjusts volume, switches connection modes, and also works as the keyboard's power control. Inside, a gasket-mounted structure uses four layers of sound-absorbing material to reduce key noise and vibration, so each press feels softer and more cushioned. The PCB is hot-swappable and accepts both 3-pin and 5-pin switches. You can replace the included tactile brown switches without soldering whenever you…

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SpecPicks Verdict

SpecPicks scored RK ROYAL KLUDGE M75 Mechanical Keyboard using a rating × review-volume × price-fit model applied to published specs and reviews across the gaming peripherals category. RK ROYAL KLUDGE's gaming peripherals lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for gaming peripherals of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Can I change the switches on the RK M75 without soldering?

Yes. The M75 has a hot-swappable PCB that supports both 3-pin and 5-pin mechanical switches, so you can pull the stock brown switches and install replacements without soldering.

How many devices can the RK M75 connect to?

It connects over Bluetooth to up to 3 devices and also supports 2.4G wireless and wired USB-C. You switch between connections with the rotary knob.

What does the OLED screen on the RK M75 show?

The built-in OLED display shows the battery level, the current connection mode, and the volume level. The rotary knob next to it controls volume, switches modes, and powers the keyboard.

Is the RK M75 a quiet keyboard?

It is built to cut noise. The gasket-mount structure uses four layers of sound-absorbing material to reduce key noise and vibration. The brown switches are tactile rather than clicky, so they make no click sound when actuated.

How long does the RK M75 battery last on a charge?

The product listing does not state battery capacity or rated runtime. Check the manufacturer's product page for current battery specs. The OLED screen shows remaining charge while you use it.

Key Features

  • Multi-function OLED Smart Display & Knob: RK M75 keyboard features a built-in OLED screen and rotary knob; Display battery level, connection mode, and volume, while the knob adjusts volume, switches modes, and powers the keyboard
  • Gasket-Mount Keyboard: RK M75 mechanical keyboard features a gasket structure with four layers of sound-absorbing material, which enhance typing comfort by reducing key noise and vibration
  • Hot-swappable Brown Switch: High-quality PCB supports 3/5-pin hot-swappable switches for easy customization; The brown switch offers a tactile mechanical feel and rapid responsiveness, catering to both beginners and seasoned typists alike
  • Multi-device Connection: This 75% keyboard supports seamless bluetooth connectivity for up to 3 devices simultaneously, allowing you to switch seamlessly using the knob
  • RGB Backlight: With 18 dynamic RGB lighting modes, 8 elegant monochrome options and a vibrant full-color setting, you can personalize your keyboard's ambiance to suit your style with RK software

Full Specifications

BrandRK ROYAL KLUDGE
ColorOcean Blue
StyleContemporary
ThemeGaming
Weight2.4g
Generation1st Generation
Model NameM75
Style NameContemporary
Unit Count1 Count
Switch TypeTactile
ConnectivityBluetooth, USB-C, 2.4GHz
Model NumberRK M75
CompatibilitySwitch
Series Number75
Built-In MediaKeycap Puller, Mechanical Keyboard, Replacement Switch*4, USB Cable, User Manual
Number of Keys81
Button Quantity81
Connection TypeWireless
Keyboard LayoutAZERTY
Mfr Part NumberM75-00-05
Full listing titleRK ROYAL KLUDGE M75 Mechanical Keyboard with OLED Smart Display and Volume Knob, 2.4G/USB-C/BT Gasket Mounted 75% Layout Wireless Gaming Keyboard with 81 Keys, RGB Backlit Hot-Swappable Brown Switch

Ready to buy?

RK ROYAL KLUDGE M75 Mechanical Keyboard with OLED Smart Display and Volume Knob, 2.4G/USB-C/BT Gasket Mounted 75% Layout Wireless Gaming Keyboard with 81 Keys, RGB Backlit Hot-Swappable Brown Switch is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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RK ROYAL KLUDGE M75 Mechanical Keyboard with OLED Smart Display and Volume Knob, 2.4G/USB-C/BT Gasket Mounted 75% Layout Wireless Gaming Keyboard with 81 Keys, RGB Backlit Hot-Swappable Brown Switch
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