M87 Mechanical Keyboard

Royal Kludge M87 Mechanical Keyboard

The Royal Kludge M87 is an 88-key mechanical keyboard featuring three connection modes, RGB backlighting, an integrated display, dedicated multimedia buttons, and two multifunction control knobs.

The keyboard supports USB Type-C wired operation, Bluetooth wireless connectivity, and 2.4GHz wireless connection through a USB receiver. It also provides three Bluetooth channels for connecting compatible computers and mobile devices.

The RK M87 includes a display for viewing connection status, adjusting keyboard settings, selecting lighting effects, and configuring the date and time. The display can also show a customizable GIF image when configured using compatible driver software.

The keyboard’s control knobs provide access to the settings menu, audio volume, display navigation, and time adjustments. Additional functions are available through Fn key combinations, including connection switching, RGB lighting controls, Windows and Mac modes, and factory reset.

This user manual provides instructions for setting up and operating the M87 keyboard, connecting through USB-C, Bluetooth, or 2.4GHz, managing the display, using keyboard shortcuts, adjusting backlighting, and accessing technical support.

Product Overview and Technical Specifications

M87 Keyboard Specifications

Main Features

The RK M87 provides the following functions:

• 88-key mechanical keyboard layout.
• USB Type-C wired connection.
• Bluetooth wireless connectivity with three channels.
• 2.4GHz wireless connection using a USB receiver.
• Integrated information and settings display.
• Left multifunction settings knob.
• Right audio volume control knob.
• Five dedicated multimedia buttons.
• Adjustable RGB backlighting.
• Customizable keyboard lighting.
• Adjustable backlight brightness and effect speed.
• Windows and Mac keyboard modes.
• Windows and Mac multimedia shortcuts.
• Windows key and Application key locking.
• Manual date and time configuration.
• Custom display GIF support through the keyboard driver.
• Factory reset using a keyboard shortcut.

What’s Included in the Box

The RK M87 package includes the following items.

Keyboard Layout and Components

The M87 has an 88-key layout with a dedicated function-key row, navigation keys, directional arrow keys, and a top control section.

Main Components

Dedicated Multimedia Buttons

The M87 has five dedicated multimedia buttons positioned in the upper-left section.

Multimedia Button Functions

Turning the Keyboard On or Off

Press and hold the Power button for 3 seconds to turn the keyboard on or off.

Controlling Media Playback

The dedicated multimedia buttons can be used to stop playback, select the previous track, play or pause media, and select the next track.

Indicator Lights and Control Knobs

The keyboard includes three status indicator lights and two multifunction control knobs.

Indicator Light Guide

Right Knob – Volume Control

The right control knob manages system audio volume.

Right Knob Functions

Increasing Volume

Rotate the right knob clockwise.

Decreasing Volume

Rotate the right knob counterclockwise.

Muting Audio

Press the right knob.

Volume Display Calibration

If the volume displayed on the keyboard is incorrect, the display is automatically calibrated when the keyboard driver is running.

The driver can be obtained through the Royal Kludge website:

www.rkgaming.com

Left Knob – Settings and Display Navigation

The left knob controls the integrated display and its settings menus.

Left Knob Functions

The left knob is used for connection settings, display configuration, lighting adjustments, and manual time settings.

Before First Use

The keyboard should be prepared and charged before first use.

Initial Preparation

1. Remove the keyboard and accessories from the packaging.
2. Locate the USB Type-C port.
3. Connect a compatible charging cable.
4. Use a 5V, 1A rated power supply for charging.
5. Allow the keyboard to charge.
6. Turn on the keyboard using the Power button.
7. Select the preferred connection method.
8. Configure Windows or Mac mode if required.

Charging the M87 Keyboard

The M87 supports charging through its USB Type-C connection.

Charging Instructions

1. Connect the USB Type-C end of the cable to the keyboard.
2. Connect the other end to a suitable USB power source.
3. Use a power supply rated at 5V, 1A.
4. Allow the keyboard to charge.

Battery Safety

• The battery must not be exposed to excessive heat, direct sunlight, or fire.
• An incorrect replacement battery may defeat built-in safety protection.
• Batteries must not be disposed of in fire or a hot oven.
• Batteries must not be crushed or cut.
• Extremely high temperatures may cause an explosion or leakage of flammable liquid or gas.
• Extremely low air pressure may cause an explosion or leakage of flammable liquid or gas.

M87 Connection Modes

The M87 supports three connection methods.

The left control knob can also be used to select connection modes through the display.

USB-C Wired Connection

The M87 can be connected directly to a computer using the USB Type-C cable.

Method 1: Wired Connection Using the Display

1. Connect the USB Type-C cable to the keyboard.
2. Connect the other end to a USB port on the computer.
3. Press the left knob to open the menu.
4. Select the USB mode icon.
5. Confirm the selection using the left knob.

The screen displays USB Success when the wired mode is selected successfully.

Method 2: Wired Connection Using a Shortcut

1. Connect the USB cable between the keyboard and computer.
2. Briefly press Fn + R.

The keyboard switches to wired mode.

Bluetooth Connection Setup

The M87 supports three Bluetooth channels, allowing compatible Bluetooth devices to be registered separately.

Bluetooth Channel Shortcuts

Connecting Bluetooth Using the Left Knob

Step 1: Turn On the Keyboard

Press and hold the Power button for 3 seconds.

Step 2: Open the Connection Menu

Press the left knob to open the settings menu.

Step 3: Select a Bluetooth Channel

Rotate the left knob and choose one of the following:

• BT1
• BT2
• BT3

Step 4: Enter Pairing Mode

Select the required Bluetooth channel, then press and hold the left knob.

The display shows BT1 Pairing when channel 1 enters pairing mode.

The equivalent pairing status is shown for the selected channel.

Step 5: Connect the Device

1. Turn on Bluetooth on the computer, phone, or tablet.
2. Search for available Bluetooth devices.
3. Select RK M87.
4. Complete the connection.

After pairing succeeds, the keyboard displays a success message and returns automatically to the Home screen.

Bluetooth Pairing Using Keyboard Shortcuts

Bluetooth pairing can also be completed without opening the settings menu.

Pairing Bluetooth Channel 1

1. Press and hold the Power button for 3 seconds.
2. Press and hold Fn + Q for 3 seconds.
3. Wait for the display to show BT1 Pairing.
4. Open the Bluetooth settings on the receiving device.
5. Search for RK M87.
6. Complete the connection.

Pairing Bluetooth Channels 2 and 3

Use the corresponding shortcut:

• Fn + W: Bluetooth channel 2.
• Fn + E: Bluetooth channel 3.

Hold the selected combination for 3 seconds to start pairing.

Reconnecting to a Bluetooth Device

A previously paired device can be reconnected by briefly pressing its assigned channel shortcut.

For example:

1. Press Fn + Q briefly.
2. The display shows BT1 Linking.
3. The keyboard attempts to reconnect to the device assigned to channel 1.

The same method applies to Fn + W and Fn + E.

Switching Between Bluetooth Devices

The keyboard can store three groups of Bluetooth devices.

After the devices have been paired, a short press of the required shortcut switches to its assigned channel.

2.4GHz Wireless Connection

The M87 supports wireless operation using its 2.4GHz USB receiver.

The receiver is stored in a dedicated compartment on the keyboard.

Connecting Through 2.4GHz Mode Using the Left Knob

1. Press and hold the Power button for 3 seconds.
2. Press the left knob to open the settings menu.
3. Rotate the knob to select the 2.4GHz connection icon.
4. Press the left knob briefly to switch to 2.4GHz mode.
5. Wait for the screen to display 2.4G Linking.
6. Connect the 2.4GHz receiver to the computer’s USB port.

After a successful connection, the screen displays 2.4G Success and returns to the Home screen.

Pairing the 2.4GHz Receiver

The M87 supports pairing or re-pairing the 2.4GHz receiver through the left knob or keyboard shortcut.

Method 1: Pairing Through the Left Knob

1. Turn on the keyboard.
2. Press the left knob to open the menu.
3. Select the 2.4GHz icon.
4. Press and hold the left knob until 2.4G Pairing appears.
5. Insert the 2.4GHz USB receiver into the computer.

After pairing is successful, the display shows 2.4G Success.

Method 2: Pairing Using Fn + P

1. Turn on the keyboard.
2. Press and hold Fn + P for 3 seconds.
3. Wait for the display to show 2.4G Pairing.
4. Insert the USB receiver into the computer.
5. Wait for the 2.4G Success message.

The keyboard and receiver are paired at the factory, so repeating the pairing procedure is normally unnecessary.

2.4GHz Receiver Storage

The 2.4GHz receiver has a designated storage area on the keyboard.

The receiver can be stored in this compartment when it is not being used.

Integrated Display and Screen Functions

The M87 has an integrated display that provides access to connection settings, status indicators, time settings, and lighting controls.

Display Status Indicators

Home Screen and Display Settings

The display supports the following options:

• Time interface.
• Customizable GIF image with driver support.
• Windows and Mac layout selection.
• English and Chinese language selection.
• Backlight effects and colors.
• Backlight brightness and speed.

Changing the Display Interface

The integrated display can show a time interface or a customized GIF image.

Selecting the Time Interface

1. Press the left knob to open the settings menu.
2. Open Home/Layout/Language.
3. Select the time interface.

Using a Custom GIF

The display supports a customizable GIF image through the keyboard driver.

The custom image must be configured using compatible driver software.

Changing the Display Language

The display supports English and Chinese menu languages.

Language Selection

1. Open the settings menu using the left knob.
2. Select Home/Layout/Language.
3. Open the language selection option.
4. Choose English or Chinese.

Manual Date and Time Setting

The integrated display supports manual date and time adjustment.

The time screen uses the following information:

Method 1: Open Time Settings Using the Left Knob

1. Open the main time screen.
2. Press and hold the left knob for approximately 5 seconds.
3. Wait until the year begins flashing.
4. The keyboard enters manual time adjustment mode.

Method 2: Open Time Settings Through the Menu

1. Press the left knob to open the settings menu.
2. Select Time Settings.
3. Enter the manual adjustment interface.

Adjusting the Date and Time

1. Press the left knob to move between date and time fields.
2. Rotate the left knob to change the selected number.
3. Rotate clockwise to increase a value.
4. Rotate counterclockwise to decrease a value.
5. Continue adjusting the required date and time fields.

Saving the Time Settings

After completing the adjustments, either:

• Press and hold the left knob for approximately 5 seconds to save and exit.
• Use the left knob to select Yes.
• Briefly press Fn + T to save and exit.

Backlight Effects and Color Settings

The display allows lighting effects and colors to be selected through the left knob.

Changing Backlight Effects

1. Press the left knob to open the settings menu.
2. Select Backlight Effects/Colour Settings.
3. Select the backlight effect icon.
4. Press the left knob to confirm.
5. Rotate the knob to choose the required effect.

Changing Backlight Colors

1. Open Backlight Effects/Colour Settings.
2. Select the color icon.
3. Press the left knob.
4. Rotate the knob to choose the preferred color.

Backlight Brightness and Speed Through the Display

The integrated display provides additional controls for lighting brightness and effect speed.

Adjusting Backlight Brightness

1. Open the settings menu.
2. Select Backlight Brightness/Speed Settings.
3. Choose the brightness icon.
4. Press the left knob.
5. Rotate the knob to adjust the brightness.

Adjusting Backlight Effect Speed

1. Open Backlight Brightness/Speed Settings.
2. Select the speed icon.
3. Press the left knob.
4. Rotate the knob to adjust the lighting effect speed.

RGB Backlight Keyboard Shortcuts

The M87 supports direct backlight adjustments through Fn key combinations.

Backlight Shortcut Table

Increasing Backlight Brightness

Press Fn + Up Arrow.

Decreasing Backlight Brightness

Press Fn + Down Arrow.

Increasing Backlight Effect Speed

Press Fn + Right Arrow.

Decreasing Backlight Effect Speed

Press Fn + Left Arrow.

Changing RGB Backlight Color

Press Fn + Pause to switch the backlight color on RGB versions.

Switching Dynamic Lighting Effects

Press Fn + Scroll Lock to switch between the available dynamic lighting effects.

Custom Backlight Recording

The M87 supports customizing the keyboard backlight by recording selected keys.

How to Create a Custom Backlight Pattern

1. Press Fn + 1 to select the custom backlight function.
2. Press Fn + Print to enter backlight recording mode.
3. When the keyboard backlight turns off, the recording mode is active.
4. Press the keys that should be customized.
5. Repeat the key selection for the required keys.
6. Press Fn + Print again to save the configuration and exit recording mode.

The selected custom lighting pattern is saved when recording mode is exited.

Windows Mode

The RK M87 supports a Windows operating system layout.

Switching to Windows Mode

Press Fn + A.

The keyboard switches to Windows system mode.

Windows Mode Functions

Windows mode provides shortcuts for opening supported applications, controlling media playback, and adjusting audio.

Windows Multimedia Shortcuts

Opening the Computer Shortcut

Press Fn + F1.

Opening the Browser

Press Fn + F2.

Opening the Mailbox

Press Fn + F3.

Opening the Calculator

Press Fn + F4.

Controlling Media Playback

Use Fn + F5 through Fn + F9 for the supported player and media functions.

Adjusting Audio

• Fn + F10: Mute.
• Fn + F11: Decrease volume.
• Fn + F12: Increase volume.

Mac Mode

The keyboard includes a Mac operating system layout.

Switching to Mac Mode

Press Fn + S.

The keyboard switches to Mac system mode.

Mac Mode Functions

Mac mode provides shortcuts for adjusting screen brightness, keyboard backlight brightness, multimedia playback, and audio volume.

Mac Multimedia Shortcuts

Adjusting Mac Screen Brightness

Press Fn + F1 or Fn + F2.

Adjusting Keyboard Backlight Brightness

Press Fn + F5 or Fn + F6.

Controlling Media Playback

Use Fn + F7 through Fn + F9.

Adjusting Audio Volume

Use Fn + F10 through Fn + F12.

Switching Between Windows and Mac

The M87 can change operating system layouts using the following shortcuts.

The selected operating system is also shown through the display’s layout settings.

Windows and Application Key Lock

The M87 provides a shortcut to lock the Windows key and Application key functions.

Activating the Lock

Press Fn + Win.

The Win Lock indicator displays the lock status.

Factory Reset

The M87 includes a factory reset shortcut for restoring the keyboard’s default configuration.

How to Factory Reset the M87

1. Turn on the keyboard.
2. Press and hold Fn + Spacebar.
3. Continue holding both keys for 3 seconds.
4. Release the keys after the reset command has been activated.

This restores the keyboard’s factory settings.

Keyboard Driver and Software

The M87 supports additional functions through Royal Kludge driver software.

The driver is used for supported display customization and automatic volume display calibration.

Driver Access

Driver-Dependent Functions

The manual identifies driver support for:

• Custom GIF images on the keyboard display.
• Automatic volume display calibration.

Connection and Settings Troubleshooting

The following checks use the keyboard’s documented setup, pairing, and reset procedures.

Bluetooth Device Does Not Connect

1. Turn on the keyboard.
2. Select the required Bluetooth channel.
3. Press and hold Fn + Q, Fn + W, or Fn + E for 3 seconds.
4. Wait for the pairing status to appear.
5. Open Bluetooth settings on the receiving device.
6. Search for RK M87.
7. Complete the pairing process.

Reconnecting a Previously Paired Bluetooth Device

Briefly press the shortcut assigned to the required Bluetooth channel.

The display shows the corresponding Linking status while reconnecting.

2.4GHz Receiver Needs to Be Paired Again

1. Turn on the keyboard.
2. Press and hold Fn + P for 3 seconds.
3. Wait for 2.4G Pairing.
4. Insert the receiver into the computer.
5. Wait for the success message.

Wired Mode Needs to Be Selected

1. Connect the USB Type-C cable.
2. Press Fn + R briefly.
3. The keyboard switches to wired mode.

Volume Display Is Incorrect

Run the keyboard driver so that the volume display can be calibrated automatically.

Backlight Settings Need to Be Restored

Press and hold Fn + Spacebar for 3 seconds to restore the keyboard’s factory settings.

Cleaning and Care Instructions

The M87 must be kept clean and used carefully to support long-term performance.

Keyboard Care

• Maintain proper posture when using the keyboard.
• Avoid excessive force when pressing the keys.
• Take regular breaks to reduce hand fatigue.
• Clean the keyboard regularly to remove dust and dirt.
• Avoid exposing the keyboard to liquids.
• Keep the keyboard in a suitable environment away from extreme temperatures and humidity.

Warranty Information

The Royal Kludge M87 includes a 12-month warranty for non-human damage, as described in the manual.

Customer Support Information

Royal Kludge provides customer support for product questions and technical issues.

For product-related questions or technical assistance, contact rkgaming@rkgaming.com.

Frequently Asked Questions

1. How is the Royal Kludge M87 connected through Bluetooth?

Turn on the keyboard, then press and hold Fn + Q, Fn + W, or Fn + E for 3 seconds to enter pairing mode. Open Bluetooth settings on the receiving device, search for RK M87, and complete the connection.

2. How is the M87 switched to wired mode?

Connect the USB Type-C cable between the keyboard and computer, then briefly press Fn + R. Wired mode can also be selected through the left knob and display menu.

3. How is the RK M87 connected through 2.4GHz wireless mode?

Turn on the keyboard and select the 2.4GHz mode through the display, or hold Fn + P for 3 seconds to enter pairing mode. Insert the 2.4GHz USB receiver into the computer and wait for the successful connection message.

4. How is the time set on the M87 display?

From the main time screen, press and hold the left knob for approximately 5 seconds until the year flashes. Use the knob to select and adjust date and time values. Save using the knob controls or press Fn + T.

5. How can the M87 RGB backlight be customized?

Press Fn + 1 to select custom backlighting, then press Fn + Print to enter recording mode. Press the required keys to customize their lighting, then press Fn + Print again to save the settings.

6. What do the two knobs on the M87 do?

The right knob controls volume and mute. The left knob opens and controls the settings menu, confirms selections, and adjusts display and configuration options.

7. How is the Royal Kludge M87 factory reset?

Press and hold Fn + Spacebar for 3 seconds to restore the keyboard’s factory settings.

8. How is the M87 switched between Windows and Mac mode?

Press Fn + A to select Windows mode or Fn + S to select Mac mode. The selected layout can also be managed through the integrated display.