Leopold FC900RBT
Leopold FC900RBT Bluetooth Mechanical Keyboard User Manual
Model: FC900RBT
Introduction
Thank you for choosing the Leopold FC900RBT Bluetooth Mechanical Keyboard. This full-size keyboard combines the renowned quality of Leopold with the convenience of Bluetooth connectivity. Designed for serious typists, it features durable Double Shot PBT keycaps and authentic Cherry MX switches, providing a reliable and comfortable typing experience. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance of your keyboard.
What's in the Box
- Leopold FC900RBT Mechanical Keyboard
- USB-C to USB-A Cable
- 2 x AAA Batteries
Setup
1. Battery Installation
The Leopold FC900RBT keyboard requires two AAA batteries for wireless operation. The battery compartment is located on the underside of the keyboard.
- Locate the battery compartment cover on the back of the keyboard.
- Slide the cover open.
- Insert two AAA batteries, ensuring correct polarity (+ and -).
- Close the battery compartment cover securely.
2. Wired Connection
For a wired connection, use the provided USB-C to USB-A cable.
- Connect the USB-C end of the cable to the port on the keyboard.
- Connect the USB-A end of the cable to an available USB port on your computer or device.
- The keyboard will be automatically recognized and ready for use.
3. Bluetooth Pairing
The FC900RBT supports Bluetooth 5.1 for wireless connectivity. It can connect to multiple devices.
- Ensure the keyboard has fresh AAA batteries installed.
- Turn on the Bluetooth switch on the underside of the keyboard.
- On your device (computer, tablet, smartphone), enable Bluetooth and search for new devices.
- The keyboard should appear as "Leopold FC900RBT" or similar. Select it to initiate pairing.
- If prompted, enter the pairing code displayed on your screen using the keyboard, then press Enter.
- Once paired, the keyboard's Bluetooth indicator light will stabilize, indicating a successful connection.
Note: The keyboard can store multiple Bluetooth profiles. Refer to the specific key combinations for switching between paired devices if applicable (usually Fn + F1-F4 or similar, though not explicitly stated in product info, it's common for BT keyboards).
Operating Instructions
Basic Keyboard Functions
The FC900RBT operates as a standard 104-key mechanical keyboard. All standard alphanumeric, symbol, and function keys (F1-F12) perform their typical operations.
DIP Switches
The keyboard features DIP switches on the underside, allowing for customization of certain key functions without software. Refer to the diagram below for switch locations and their corresponding functions. Always power off the keyboard or disconnect the USB cable before changing DIP switch settings.

Image: Underside view of the Leopold FC900RBT keyboard, highlighting the location of the DIP switches. These switches allow users to modify keyboard behavior, such as swapping Caps Lock and Left Ctrl, or changing the function of the Windows key.
| Switch No. | Function (ON Position) | Description |
|---|---|---|
| DIP Switch 1 | Caps Lock & Left Ctrl Swap | Swaps the functionality of the Caps Lock key with the Left Control key. |
| DIP Switch 2 | Windows Key Disable | Disables the Windows key to prevent accidental presses during gaming or intensive typing. |
| DIP Switch 3 | Fn & Right Alt Swap | Swaps the functionality of the Fn key with the Right Alt key. |
| DIP Switch 4 | Application Key Disable | Disables the Application (Menu) key. |
Consult the specific DIP switch layout printed on the keyboard's underside for precise functions, as these may vary slightly by revision.
Maintenance
Cleaning the Keyboard
Regular cleaning helps maintain the performance and appearance of your keyboard.
- General Cleaning: Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution to wipe down the keycaps and casing. Avoid excessive moisture.
- Dust Removal: Use compressed air to blow away dust and debris from between the keycaps.
- Deep Cleaning: For thorough cleaning, keycaps can be carefully removed.
Keycap Removal and Installation
The FC900RBT features durable Double Shot PBT keycaps. They can be removed for cleaning or replacement.

Image: Top-down view of the Leopold FC900RBT mechanical keyboard, showcasing its full-size layout and two-tone PBT double shot keycaps. This view is useful for identifying individual keycaps for removal or replacement.
- Removal: Use a keycap puller (not included) or gently pry up the keycap from one side using a small, flat tool. Apply even pressure to avoid damaging the switch stem. For larger keys (Spacebar, Shift, Enter), be extra careful as they may have stabilizers.
- Installation: Align the keycap with the switch stem and press down firmly until it clicks into place. Ensure it is level and secure.
Caution: Do not force keycaps. Excessive force can damage the switch stem.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding (wired) | Loose cable connection, faulty USB port, driver issue. |
|
| Keyboard not responding (Bluetooth) | Low batteries, Bluetooth off, not paired, interference. |
|
| Keys not registering or double-typing | Debris under keycap, faulty switch. |
|
Specifications
| Feature | Detail |
|---|---|
| Model | FC900RBT |
| Connectivity | USB-C (Wired), Bluetooth 5.1 (Wireless) |
| Key Switches | Genuine Cherry MX Blue |
| Keycaps | 1.5mm thick PBT Double Shot |
| Layout | Full-size (104 keys) |
| Power Source | 2 x AAA Batteries (for Bluetooth), USB-C (for wired) |
| Compatible Devices | Laptop, PC, Tablet, Smartphone |
| Color | Two Tone White (Cherry MX Blue switches) |

Image: Angled view of the Leopold FC900RBT keyboard, providing a perspective of its profile and keycap sculpt. This view helps illustrate the ergonomic design and overall build quality.
Warranty and Support
Leopold products are manufactured to high quality standards. For information regarding warranty coverage, technical support, or service, please refer to the official Leopold website or contact your point of purchase. Keep your purchase receipt as proof of purchase for warranty claims.
For further assistance, please visit the Leopold Store on Amazon or contact customer support.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.