Product Overview
The Royal Kludge RK-M75 is a versatile mechanical wireless keyboard designed for various operating systems.
Key Specifications:
- Size: 327.6(L) × 138.5(W) × 42(H) ± 2 mm
- Layout: 81 keys
- Backlight: Single light/RGB options available
- Switch Type: Mechanical switch
Included Accessories:
- Type-C-C-A Cable
- User Manual
Connectivity Modes
Wired Mode:
To use the keyboard in wired mode, connect the Type-C-C-A USB cable to your device and select the USB mode using the knob. A 5V 1A rated power source is recommended for charging the keyboard in this mode.
Bluetooth (BT) Connection:
The keyboard supports up to 3 Bluetooth device connections (BT1, BT2, BT3).
- Rotate the knob to choose BT1 mode.
- Short press the knob to enter mode switching options.
- Turn the arrow to BT1. Long press the knob to enter BT1 pairing mode; the display will show "BT Pairing".
- Turn on Bluetooth on your computer/phone, search for "RK-M75", and connect.
- A successful connection will be indicated by "BT Re-Link" on the display.
Repeat these steps to store and switch between BT2 and BT3 devices.
2.4GHz Wireless Connection:
The keyboard comes pre-paired with its 2.4G dongle from the factory, so re-pairing is generally not needed.
- Rotate the knob to 2.4G mode.
- Short press the knob to enter mode switching options.
- Turn the arrow to 2.4G. Long press the knob to enter 2.4G pairing mode; the display will show "2.4G Pairing".
- Plug in the 2.4G dongle. Successful pairing will return to the home screen, and the display will show "2.4G Re-Link".
The 2.4G dongle can be stored in a dedicated area on the keyboard.
Keyboard Controls
Display Screen & Clickable Knob Switch:
The clickable knob and display screen provide intuitive control.
At Home Screen Functions:
- Press and hold for 3 seconds: Power on/off.
- Clockwise rotation: Volume up.
- Counterclockwise rotation: Volume down.
- Short press: Enter mode switching options.
Mode Switching Options:
- Turning the knob: Navigate to 'Select'.
- Short press: Confirm 'OK'.
Display Screen Information:
The screen shows:
- Battery Level (e.g., 100%)
- Current Operating System (WIN/MAC)
- Current Connection Mode (USB, Wired, 2.4G, BT1, BT2, BT3)
- Volume adjustment (requires driver for full functionality)
Backlight Control:
Adjust the keyboard's backlight using the Function (Fn) key combinations:
- Fn + ↑: Backlight Brightness+
- Fn + ↓: Backlight Brightness-
- Fn + ←: Backlight Speed-
- Fn + →: Backlight Speed+
- Fn + < : Switch Backlight Color (for RGB version only)
- Fn + \|: Switch Backlight Mode
- Fn + Spacebar: Restore to factory settings
- Fn + ?: Window Lock
Multimedia & Function Keys
Multimedia Keys for Windows (Fn+A to switch to Windows system):
- Fn + F1: Computer
- Fn + F2: Browser
- Fn + F3: Mailbox
- Fn + F4: Calculator
- Fn + F5: Player
- Fn + F6: Stop
- Fn + F7: Last Song
- Fn + F8: Play / Pause
- Fn + F9: Next Song
- Fn + F10: Mute
- Fn + F11: Volume-
- Fn + F12: Volume+
Multimedia Keys for Mac (Fn+S to switch to MAC system):
- Fn + F1: Screen Brightness-
- Fn + F2: Screen Brightness+
- Fn + F5: Keyboard Backlight Brightness-
- Fn + F6: Keyboard Backlight Brightness+
- Fn + F7: Last Song
- Fn + F8: Play / Pause
- Fn + F9: Next Song
- Fn + F10: Mute
- Fn + F11: Volume-
- Fn + F12: Volume+
Secondary Combination Function Keys:
- Fn + Del: ScrLk
- Fn + Home: PrtSc
- Fn + PgUp: Pause
- Fn + A: Switch to Windows System
- Fn + S: Switch to Mac System
- Fn + PgDn: End
- Fn + ]}: Ins
System Requirements
BT Mode:
- Device with Bluetooth 5.1 or later
- PC: Windows 7 or Later
- Mac: macOS X 10.6 Snow Leopard or Later
- iOS: All iPads/iPhone 5 or Later
- Android: 5.0 Lollipop or Later
Wired/2.4GHz Mode:
- Computer with available USB port
- PC: Windows 7 or Later
- Mac: macOS X 10.6 Snow Leopard or Later
Driver Download
For additional functionality and customization, drivers can be downloaded from the official RK Gaming website:
