RK Mechanical Keyboard Fn Key Shortcuts Guide: R65, R75, R87 Pro, N99 & S98
The Fn (Function) key unlocks secondary functions on your RK mechanical keyboard, including F-key commands, media controls, operating-system shortcuts, and lighting settings. This guide covers the RK R65, R75, R87 Pro, N99, and S98. Shortcuts vary by model, so follow the section for your exact keyboard.
Basic Fn Shortcuts
- Fn + Win: Lock or unlock the Win and App keys.
- Fn + Space (hold for 3 seconds): Restore factory settings.
- Fn + A: Windows mode.
- Fn + S: Mac mode.
RK R65 Shortcuts
The R65 is a 66-key keyboard with 6-key and full-key rollover modes.
| Shortcut | Function |
|---|---|
| Fn + B | Switch 6-key / full-key rollover |
| Fn + Left Ctrl | Switch the number-row and F-key function arrangement |
| Fn + 1 / 2 / 3 / 4 / 5 / 6 | F1 / F2 / F3 / F4 / F5 / F6 |
| Fn + 7 / 8 / 9 / 0 / - / = | F7 / F8 / F9 / F10 / F11 / F12 |
| Fn + ' | Print Screen |
| Fn + Del | Insert |
| Fn + PgUp | Pause |
| Fn + End | Page Down |
| Fn + [ | Home |
| Fn + ] | Scroll Lock |
| Fn + Esc | Grave accent (`) |
RK R75 Shortcuts
The R75 is an 80-key keyboard with full-key rollover.
| Shortcut | Function |
|---|---|
| Fn + Del | Scroll Lock |
| Fn + Home | Print Screen |
| Fn + PgUp | Pause |
| Fn + ] | Insert |
| Fn + PgDn | End |
RK R87 Pro Shortcuts
The R87 Pro is an 88-key keyboard with full-key rollover.
| Shortcut | Function |
|---|---|
| Fn + B | Switch 6-key / full-key rollover |
| Fn + 1 / 2 / 3 | Select a custom lighting profile |
| Fn + PrtSc | Enter or exit lighting-recording mode; the backlight turns off while recording. Press the keys to record, then press Fn + PrtSc again to save and exit. |
| Fn + ScrLk | Cycle dynamic lighting effects |
| Fn + Ins | Change side-lighting and indicator-light color |
| Fn + ↑ / ↓ | Increase / decrease brightness |
| Fn + ← / → | Decrease / increase effect speed |
RK N99 Shortcuts
The N99 is a 98-key keyboard with full-key rollover.
| Shortcut | Function |
|---|---|
| Fn + Del | Scroll Lock |
| Fn + * | Print Screen |
| Fn + / | Insert |
| Fn + Home | End |
| Fn + PgUp | Pause |
| Fn + 1 | Select custom lighting mode |
| Fn + Backspace | Enter / exit lighting-recording mode. Backlight turns off while recording; press desired keys, then press Fn + Backspace again to save and exit. |
| Fn + 2 / Fn + 3 | Select the two built-in lighting effects |
| Fn + \| | Cycle through 19 lighting effects |
| Fn + , | Switch backlight color |
| Fn + ↑ / ↓ | Increase / decrease brightness |
| Fn + ← / → | Decrease / increase effect speed |
RK S98 Shortcuts
The S98 is a 98-key keyboard with full-key rollover.
| Shortcut | Function |
|---|---|
| Fn + Del | Scroll Lock |
| Fn + Home | Print Screen |
| Fn + PgUp | Pause |
| Fn + PgDn | End |
| Fn + ] | Insert |
| Fn + 1 | Select custom lighting profile |
| Fn + Backspace | Enter / exit lighting-recording mode. Backlight turns off while recording; press desired keys, then press Fn + Backspace again to save and exit. |
| Fn + \| | Cycle dynamic lighting effects |
| Fn + , | Switch backlight color |
| Fn + ↑ / ↓ | Increase / decrease brightness |
| Fn + ← / → | Decrease / increase effect speed |
Windows and Mac F1–F12 Functions
The R65, R75, R87 Pro, N99, and S98 share the following system and media functions for F1–F12.
Windows mode
| Key | Function |
|---|---|
| F1 | Computer |
| F2 | Browser |
| F3 | |
| F4 | Calculator |
| F5 | Media Player |
| F6 | Stop |
| F7 | Previous track |
| F8 | Play / Pause |
| F9 | Next track |
| F10 | Mute |
| F11 | Volume down |
| F12 | Volume up |
Mac mode
| Key | Function |
|---|---|
| F1 / F2 | Decrease / increase screen brightness |
| F5 / F6 | Decrease / increase keyboard backlight brightness |
| F7 | Previous track |
| F8 | Play / Pause |
| F9 | Next track |
| F10 | Mute |
| F11 | Volume down |
| F12 | Volume up |
Common Questions
How do I switch between Windows and Mac?
Use Fn + A for Windows mode or Fn + S for Mac mode.
How do I reset my keyboard?
Hold Fn + Space for approximately 3 seconds to restore factory settings on the models in this guide.
Why is a shortcut not working?
Check that the shortcut applies to your exact model and that the keyboard is in the intended operating-system mode. Some media and function-key actions can also depend on computer settings or the active application.
Do all RK keyboards use the same Fn shortcuts?
No. Fn combinations vary by model and layout. Always check the instructions for your exact RK keyboard.
Bookmark this RK Fn key shortcut guide for quick access to system commands, media controls, RGB lighting, and custom lighting on your R65, R75, R87 Pro, N99, or S98.