Introduction
Thank you for choosing the Rosewill Neon S75 Wireless Mechanical Gaming Keyboard. This manual provides essential information for setting up, operating, maintaining, and troubleshooting your new keyboard. Please read it thoroughly to ensure optimal performance and longevity of your device.
The Rosewill Neon S75 features a compact 75% layout with 80 keys, a gasket-mounted design for improved typing feel, and hot-swappable switches for customization. It offers versatile tri-mode connectivity (Bluetooth 5.0, 2.4GHz wireless, and USB-C wired) and is compatible with both Windows and macOS operating systems. A high-capacity 6000mAh battery ensures extended wireless usage.
Package Contents
- Rosewill Neon S75 Wireless Mechanical Gaming Keyboard
- USB-C to USB-A Cable
- 2.4GHz USB Wireless Dongle
- Keycap/Switch Puller Tool
- User Manual
Setup
1. Charging the Keyboard
Before initial use, fully charge the keyboard. Connect the provided USB-C cable to the keyboard's USB-C port and the other end to a USB power source (e.g., computer USB port, wall adapter). The charging indicator will show the charging status.

Image: The keyboard is equipped with a high-capacity 6000mAh lithium battery for extended wireless performance.
2. Connecting the Keyboard
The Neon S75 supports three connection modes: Bluetooth 5.0, 2.4GHz wireless, and USB-C wired. Use the switch on the back of the keyboard to select your desired mode.

Image: The keyboard offers versatile tri-mode connectivity for various devices and operating systems.
2.1. 2.4GHz Wireless Connection
- Set the mode switch on the back of the keyboard to '2.4G'.
- Plug the 2.4GHz USB wireless dongle into an available USB port on your computer.
- The keyboard will automatically connect. If not, press Fn + Q to initiate pairing.
2.2. Bluetooth 5.0 Connection
- Set the mode switch on the back of the keyboard to 'BT'.
- Press and hold Fn + Q, Fn + W, or Fn + E for 3-5 seconds to enter pairing mode for Bluetooth device 1, 2, or 3 respectively. The indicator light will flash rapidly.
- On your device (computer, tablet, smartphone), search for Bluetooth devices and select "Rosewill Neon S75".
- Once paired, the indicator light will stop flashing. You can switch between paired devices by pressing Fn + Q, Fn + W, or Fn + E.
2.3. USB-C Wired Connection
- Set the mode switch on the back of the keyboard to 'USB'.
- Connect the provided USB-C cable from the keyboard to your computer.
- The keyboard will be recognized as a wired device and is ready for use.
3. System Compatibility
The keyboard is compatible with both Windows and macOS. Use the dedicated hotkey Fn + A (for Windows) or Fn + S (for macOS) to switch between operating system layouts for optimal functionality.
4. Software Installation
For advanced customization, including key remapping and RGB lighting effects, download the dedicated software. This software is compatible with Windows systems only.

Image: Scan this QR code to access product-related information, including software downloads. You can also visit linktr.ee/qr/1a3cb565-bba3-4354-8e08-7a0e511ff85b.

Image: The keyboard supports programmable software for customization, exclusively for Windows users.
Operating Instructions
1. Basic Key Functions
The Neon S75 features an 80-key layout. Standard alphanumeric keys function as labeled. Function keys (F1-F12) are accessed via the Fn key combination.
2. Volume Knob
The dedicated volume knob located on the top right of the keyboard allows for quick audio control:
- Rotate clockwise to increase volume.
- Rotate counter-clockwise to decrease volume.
- Press the knob to mute/unmute audio.
3. RGB Lighting Control
The keyboard features customizable RGB backlighting. Use the following Fn key combinations to adjust lighting effects:
- Fn + \|: Cycle through various lighting modes.
- Fn + ←: Decrease lighting speed.
- Fn + →: Increase lighting speed.
- Fn + ↑: Increase brightness.
- Fn + ↓: Decrease brightness.
4. Hot-Swappable Switches
The Neon S75 features hot-swappable sockets, allowing you to change mechanical switches without soldering. This supports both 3-pin and 5-pin switches.

Image: The keyboard's hot-swappable design allows for easy replacement of mechanical switches.
Changing Switches:
- Power off the keyboard or disconnect it from your computer.
- Use the provided switch puller tool to carefully grip the switch and pull it straight up.
- Align the pins of the new switch with the holes on the PCB. Ensure the pins are straight.
- Gently press the new switch into place until it clicks. Do not force it.
5. Multi-Device Switching (Bluetooth)
When connected via Bluetooth, you can quickly switch between up to three paired devices using the Fn + Q, Fn + W, or Fn + E key combinations.
Maintenance
1. Cleaning the Keyboard
- Disconnect the keyboard before cleaning.
- Use a soft, lint-free cloth dampened with a small amount of water or a mild cleaning solution to wipe the keycaps and chassis.
- For deeper cleaning, use the keycap puller to remove keycaps and clean underneath with compressed air or a small brush.
- Avoid excessive moisture and harsh chemicals.
2. Battery Care
- To prolong battery life, avoid fully discharging the keyboard frequently.
- Store the keyboard in a cool, dry place when not in use for extended periods.
- Charge the keyboard regularly, even if not used daily, to maintain battery health.
3. Switch and Keycap Replacement
Refer to the "Hot-Swappable Switches" section under Operating Instructions for detailed steps on replacing switches. When replacing keycaps, use the keycap puller to gently remove them and press new keycaps firmly into place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding (wireless) | Low battery; Incorrect mode selected; Dongle not connected; Bluetooth not paired. | Charge keyboard; Check mode switch; Reconnect dongle; Re-pair Bluetooth. |
| Keys not registering | Loose or faulty switch; Software issue. | Ensure switches are fully seated; Try a different switch; Reinstall software (Windows only). |
| RGB lighting not working | Lighting turned off; Low battery. | Adjust brightness/mode using Fn keys; Charge keyboard. |
| Cannot switch between devices | Bluetooth pairing issue; Incorrect Fn key combination. | Ensure devices are paired to correct Fn+Q/W/E slots; Re-pair devices if necessary. |
If you encounter issues not listed here, please refer to the customer support section.
Specifications
| Model | NEON S75 W |
| Layout | 75% (80 Keys) |
| Switch Type | Red Switches (Linear, Hot-Swappable 3/5-pin) |
| Connectivity | Bluetooth 5.0, 2.4GHz Wireless, USB-C Wired |
| Battery Capacity | 6000mAh |
| Backlighting | RGB |
| Compatible OS | Windows, macOS |
| Dimensions (L x W x H) | 13.1" x 5.43" x 1.77" (33.27 cm x 13.79 cm x 4.5 cm) |
| Weight | 2 pounds (0.91 kg) |
Warranty Information
The Rosewill Neon S75 Wireless Mechanical Gaming Keyboard comes with a 1-Year Limited Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by accident, abuse, misuse, unauthorized modification, or improper installation.
Please retain your proof of purchase for warranty claims.
Customer Support
For technical assistance, warranty claims, or further inquiries, please contact Rosewill Customer Support through their official website or the contact information provided with your product packaging.
You can also visit the Rosewill Store on Amazon for additional product information and resources.
Product Overview Video
Video: An official overview of the Rosewill Neon S75 Keyboard, demonstrating its features and design.