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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 Red 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 ($59.49 on Amazon as of 2026-10-06): OLED screen shows battery, WIN/MAC, connection mode and volume at a glance; main trade-off: linear red switches lack the tactile bump some typists prefer.

$59.49

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Buy on Amazon — $59.49 Compare to similar gaming peripherals

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.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ OLED screen shows battery, WIN/MAC, connection mode and volume at a glance
  • ✓ Multi-function knob: volume, mode switching and power in one control
  • ✓ Gasket mount with four sound-absorbing layers reduces noise and vibration
  • ✓ Tri-mode USB-C, 2.4G and Bluetooth, pairing up to three BT devices

Cons

  • ✗ Linear red switches lack the tactile bump some typists prefer
  • ✗ Compact 81-key 75% layout drops the dedicated numpad
  • ✗ Full RGB customization depends on installing the RK software
  • ✗ Listing does not state battery capacity or runtime per charge

Manufacturer description

The RK ROYAL KLUDGE M75 is a 75% mechanical keyboard with a lot of hardware packed into 81 keys. A built-in OLED smart display shows battery level, WIN/MAC mode, the active connection (USB, 2.4G or Bluetooth) and volume level, so you can check the keyboard's state without opening any software. The rotary knob does three jobs. Turn it to change the volume, short-press it to switch between USB, 2.4G and Bluetooth, and hold it for three seconds to power the board on or off. Bluetooth pairs with up to three devices, which makes it easy to move between a gaming PC, a work laptop and a tablet…

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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

What does the OLED screen on the RK M75 display?

The OLED smart display shows battery level, WIN or MAC mode, the active connection (USB, 2.4G or Bluetooth) and the current volume level.

How many devices can the RK M75 connect to at once?

Bluetooth supports up to three devices, and you switch between them with the knob. The keyboard also connects over 2.4G wireless and wired USB-C.

Can I swap the switches on the RK M75?

Yes. The PCB is hot-swappable and accepts both 3-pin and 5-pin switches, so you can replace the pre-installed red switches without soldering.

How do I turn the RK M75 on and off?

Hold the rotary knob for three seconds to power the keyboard on or off. Turning the knob changes the volume, and a short press switches between USB, 2.4G and Bluetooth.

Is the RK M75 quiet enough for an office?

It is built for quieter typing. The gasket mount uses four layers of sound-absorbing material, and the linear red switches are designed to be quieter and smoother, which the listing recommends for office and customer service use.

Key Features

  • OLED Smart Display: This mechanical keyboard comes with a OLED smart screen that displays battery level, WIN/MAC, USB/2.4G/Bluetooth mode, volume level, simplifying understanding of its functionality
  • Volume Knob: This gaming keyboard is equiped with a rotary knob design, You can long press the knob for three seconds to power on/off, rotating it to adjust the volume and short press to switch the connectivity (USB, 2.4, and BT)
  • 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 Red Switch: High-quality PCB supports 3/5-pin hot-swappable, allowing you to customize your keyboard. The red switch, less mechanical sense, quieter, smoother and faster. Ideal for office use, for customer service and for those who like to type quietly and quickly
  • Multi-device Connection: This 75% keyboard supports seamless bluetooth connectivity for up to three devices simultaneously, allowing you to effortlessly switch between them using a convenient 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
Weight2.4g
Model NameM75
Style NameContemporary
Unit Count1.0 Count
Is ElectricYes
Switch TypeLinear
ConnectivityBluetooth, USB-C, 2.4GHz
Model NumberRKM75
Power SourceBattery Powered
CompatibilitySwitch, Mac
Series Number75
Built-In MediaKeycap Puller, USB Cable
Number of Keys81
Button Quantity81
Connection TypeWireless
Special FeatureBacklit, Hot-Swappable, Portable, Volume Roller
Antenna LocationEveryday Use, Gaming, Personal
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 Red 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 Red 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.

Buy on Amazon — $59.49

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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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 Red Switch
$59.49
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