RK N99 Mechanical Keyboard User Guide: Setup, Connectivity, RGB & Shortcuts
Introduction
The RK N99 mechanical keyboard combines a space-efficient 98-key layout with a dedicated numeric keypad, tri-mode connectivity, a multifunction display and knob, customizable RGB lighting, and hot-swappable switches. This guide explains how to connect the keyboard, switch devices and operating systems, adjust lighting, use the display, and access useful shortcuts.
1. Getting to Know the RK N99
- 98-key layout: A compact layout that retains a dedicated numeric keypad.
- Gasket structure: Designed to provide a cushioned typing experience.
- Hot-swappable switches: Compatible switches can be replaced without soldering.
- Tri-mode connectivity: USB wired, 2.4GHz wireless, and Bluetooth.
- Multifunction display and knob: Quick access to keyboard information and settings.
- RGB backlighting: 19 lighting effects and custom lighting recording.
- Windows and macOS support: Dedicated system modes and shortcuts.
2. Connecting Your RK N99
USB Wired Mode
- Connect the keyboard to your computer using the USB cable.
- Press the multifunction knob to enter the menu, select USB mode, and short-press the knob to confirm.
- Alternatively, press Fn + R to switch to wired mode.
2.4GHz Wireless Mode
- Insert the 2.4GHz receiver into your computer and switch the keyboard ON.
- Press the knob to open the menu, rotate to select 2.4G mode, and short-press to confirm.
- The display will show the connection status and return to the main screen when connected.
The receiver is paired before shipment, so pairing normally is not required. If reconnection is needed, select 2.4G mode, press and hold the knob to enter pairing mode, and insert the receiver. Alternatively, press and hold Fn + P for approximately 3 seconds, then insert the receiver when pairing starts. Wait for “2.4G Connection Successful.”
Bluetooth Mode
The keyboard supports three Bluetooth profiles: BT1, BT2, and BT3.
- Switch the keyboard ON.
- Open the menu with the knob and select BT1, BT2, or BT3.
- Press and hold the knob to enter pairing mode.
- Open Bluetooth settings on your computer, tablet, or phone.
- Find and select RK N99 to pair.
- Fn + Q: Bluetooth device 1
- Fn + W: Bluetooth device 2
- Fn + E: Bluetooth device 3
Press and hold the corresponding shortcut for approximately 3 seconds to enter pairing mode. After pairing, short-press the shortcut to reconnect or switch between saved devices.
3. Switching Between Windows and macOS
- Fn + A: Windows mode
- Fn + S: macOS mode
In macOS mode, the Windows and Alt key functions are exchanged to better match the Mac keyboard layout. Select the mode that matches your computer to ensure modifier keys work as expected.
4. RGB Backlighting Controls
The RK N99 provides 19 backlighting effects.
| Shortcut | Function |
|---|---|
| Fn + \ | Switch lighting effects |
| Fn + , / < | Switch single-color lighting |
| Fn + ↑ | Increase brightness |
| Fn + ↓ | Decrease brightness |
| Fn + ← | Decrease lighting speed |
| Fn + → | Increase lighting speed |
Recording a Custom Lighting Effect
- Press Fn + 1 to select the custom lighting mode.
- Press Fn + Backspace to enter recording mode. The backlight turns off to indicate recording has started.
- Press the keys you want to illuminate.
- Press Fn + Backspace again to save the effect and exit recording mode.
Two default lighting effects are also available through Fn + 2 and Fn + 3.
5. Using the Display and Multifunction Knob
By default, the knob controls volume: rotate clockwise to increase volume and counterclockwise to decrease it. Short-press the knob to enter the settings menu or confirm a selection. In menus, rotate to browse options and short-press to select.
Manually Setting the Date and Time
- Open the main time display.
- Press and hold the knob for approximately 5 seconds until the year flashes.
- Rotate the knob to adjust the value.
- Short-press the knob to move through year, month, day, hour, minute, and second.
- After adjustment, press and hold the knob for another 5 seconds to save and exit.
You can also press Fn + T to save and exit time-setting mode.
6. Function and Media Shortcuts
General Shortcuts
| Shortcut | Function |
|---|---|
| Fn + Win | Lock or unlock Windows and App keys |
| Fn + Del | Scroll Lock |
| Fn + * | Print Screen |
| Fn + / | Insert |
| Fn + Home | End |
| Fn + PgUp | Pause |
| Hold Fn + Space for 3 seconds | Restore factory settings |
Windows Media Shortcuts
| Shortcut | Function |
|---|---|
| Fn + F1 | My Computer |
| Fn + F2 | Browser |
| Fn + F3 | |
| Fn + F4 | Calculator |
| Fn + F5 | Media Player |
| Fn + F6 | Stop |
| Fn + F7 | Previous Track |
| Fn + F8 | Play / Pause |
| Fn + F9 | Next Track |
| Fn + F10 | Mute |
| Fn + F11 | Volume Down |
| Fn + F12 | Volume Up |
macOS Shortcuts
| Shortcut | Function |
|---|---|
| Fn + F1 | Decrease screen brightness |
| Fn + F2 | Increase screen brightness |
| Fn + F5 | Decrease keyboard backlight |
| Fn + F6 | Increase keyboard backlight |
| Fn + F7 | Previous Track |
| Fn + F8 | Play / Pause |
| Fn + F9 | Next Track |
| Fn + F10 | Mute |
| Fn + F11 | Volume Down |
| Fn + F12 | Volume Up |
7. Battery and Charging
The RK N99 has a 7200mAh battery. The product specifications list these estimated usage times:
| Usage Condition | Approximate Runtime |
|---|---|
| Wireless mode, backlight at maximum brightness | 36 hours |
| Wireless mode, backlight at minimum brightness | 100 hours |
| Wireless standby without operation | Up to 15,000 hours |
Approximate charging time is 14 hours. Actual battery life may vary with lighting settings, connection mode, usage frequency, and other operating conditions. For longer wireless use, reduce backlight brightness or turn off lighting when it is not needed.
8. Connection and Operation Tips
- Bluetooth will not connect: Make sure the keyboard is ON, select the correct BT profile, and search for RK N99 in your device's Bluetooth settings.
- Bluetooth switching does not work: Confirm that the selected BT1, BT2, or BT3 profile has been paired previously.
- 2.4GHz connection fails: Check the receiver connection and repeat the pairing process if necessary.
- Wired mode does not activate: Check the USB cable and press Fn + R.
- RGB effects do not change: Check that you are using Fn + backslash to cycle lighting effects.
- Shortcuts behave unexpectedly: Confirm that the correct Windows or macOS mode is selected.
To restore factory settings, press and hold Fn + Space for approximately 3 seconds.
9. Frequently Asked Questions
How many keys does the RK N99 have?
The RK N99 features a 98-key layout with a dedicated numeric keypad.
Does the RK N99 support Bluetooth?
Yes. It supports three Bluetooth profiles, allowing you to pair and switch between up to three devices.
How do I switch between Bluetooth devices?
After pairing, use Fn + Q, Fn + W, or Fn + E to switch between the three Bluetooth profiles.
Can I customize the RGB lighting?
Yes. The keyboard offers 19 lighting effects and custom lighting recording through Fn + 1 and Fn + Backspace.
Does the RK N99 work with Mac?
Yes. Press Fn + S to switch to macOS mode, or Fn + A to return to Windows mode.
How do I reset the keyboard?
Press and hold Fn + Space for approximately 3 seconds to restore factory settings.
Final Thoughts
The RK N99 combines a practical 98-key layout, flexible tri-mode connectivity, customizable RGB lighting, and convenient display and knob controls. Understanding its connection options and shortcuts will help you make the most of the keyboard for gaming, everyday typing, and multi-device work.