Redragon K681GB-PRO-DE Gaming Keyboard: driver, software, Bluetooth, 2.4 GHz, German layout, and RGB lighting

Last Updated on 13.09.2026 by DriverNew

Redragon K681GB-PRO-DE is a 75% wireless mechanical keyboard with a German QWERTZ layout and USB-C, 2.4 GHz, and Bluetooth connectivity. A separate proprietary Redragon driver is not required for normal operation. After the keyboard is connected, Windows automatically uses the standard HID keyboard driver.

For advanced configuration, separate Redragon K681GB-PRO-DE Setup V2.0 software is used. It is designed for remapping supported keys, creating macros, working with profiles, and advanced RGB lighting configuration. The software does not need to be installed for normal text input and keyboard connectivity.

Does the Redragon K681GB-PRO-DE need a driver?

A separate Redragon driver is not required for basic operation.

Windows automatically installs the necessary HID components when connected:

• via USB-C;
• through the included 2.4 GHz receiver;
• via Bluetooth.

If the keyboard already types normally, there is no need to look for an additional system driver.

The Redragon software is a configuration utility and does not replace the standard Windows HID driver.

Official K681GB-PRO-DE software

It is recommended to download the software through the official Redragon download center:

Redragon Software

The verified version was distributed under the following name:

Redragon_K681GB-PRO-DE_Setup_v2.0_20251028.exe

The software version is 2.0.

This is a separate software package for the German K681GB-PRO-DE version. It differs from the previously released K681MG-RGB-PRO / K681SP-RGB-PRO Setup V2.0.

How to install K681GB-PRO-DE Setup V2.0

1. First connect the keyboard and make sure it works without the Redragon software.
2. Download the software specifically for K681GB-PRO-DE.
3. For the initial installation, a wired USB-C connection is recommended.
4. Close any Redragon software intended for other keyboards.
5. Run Redragon_K681GB-PRO-DE_Setup_v2.0_20251028.exe.
6. Complete the installation.
7. Launch the software and check whether the keyboard is detected.

If you only need normal text input, built-in RGB lighting, and wireless connectivity, installing the software is optional.

Microsoft Defender SmartScreen warning

The verified K681GB-PRO-DE Setup V2.0 installer does not have an Authenticode digital signature. Therefore, Windows 10 or Windows 11 may display a Microsoft Defender SmartScreen warning or an unknown publisher message.

If Windows displays “Windows protected your PC” and you are sure you are using the official file, click “More info”, then “Run anyway”.

Wired USB-C connection

Wired mode is convenient for initial testing, charging, and diagnosing wireless connection problems.

1. Set the keyboard switch to OFF.
2. Connect the USB-C cable to the keyboard.
3. Connect the other end of the cable directly to a USB port on the computer.
4. Wait a few seconds.
5. Open a text editor and test typing.

If K681GB-PRO-DE works normally over USB, the standard Windows HID driver is installed correctly.

Connecting via 2.4 GHz

The included USB receiver is used for 2.4 GHz wireless mode.

1. Set the keyboard switch to 2.4G.
2. Connect the included USB receiver directly to the computer.
3. Wait a few seconds.
4. Test typing.

If the pairing information is saved, the connection is usually established automatically.

Re-pairing the 2.4 GHz receiver

If the keyboard works via USB or Bluetooth but no longer connects to the USB receiver:

1. Make sure the keyboard is charged.
2. Set the switch to 2.4G.
3. Disconnect the USB receiver from the computer.
4. Press and hold FN + 4 for approximately 3 seconds.
5. Wait until the pairing indicator starts flashing rapidly.
6. Connect the included USB receiver to the computer.
7. Place the keyboard close to the receiver.
8. Wait for the connection to complete and test the keyboard.

Connecting via Bluetooth

The keyboard supports several Bluetooth profiles.

Shortcut	Profile
FN + 1	Bluetooth 1
FN + 2	Bluetooth 2
FN + 3	Bluetooth 3

A short press is used to switch between previously saved Bluetooth profiles. To pair a new device, press and hold the selected shortcut for approximately 3 seconds until the indicator starts flashing rapidly.

Bluetooth in Windows 11

1. Set the keyboard switch to BT.
2. Press and hold FN + 1, FN + 2, or FN + 3 for approximately 3 seconds.
3. Open Settings → Bluetooth & devices.
4. Turn on Bluetooth.
5. Click Add device.
6. Select Bluetooth.
7. Select the keyboard from the list of detected devices.
8. Wait for pairing to complete.

Bluetooth in Windows 10

1. Set the switch to BT.
2. Press and hold FN + 1, FN + 2, or FN + 3 for approximately 3 seconds.
3. Open Settings → Devices → Bluetooth & other devices.
4. Turn on Bluetooth.
5. Select Add Bluetooth or other device.
6. Click Bluetooth.
7. Select the keyboard.
8. Complete the pairing process.

Switching between Bluetooth devices

After the initial pairing, you can quickly switch between saved devices:

• FN + 1 — first Bluetooth profile;
• FN + 2 — second profile;
• FN + 3 — third profile.

For normal switching, use a short press. Pressing and holding starts a new pairing process.

If Bluetooth no longer connects

If K681GB-PRO-DE remains in the list of saved Windows devices but no longer connects, remove the old pairing and create it again.

Windows 11

1. Open Settings → Bluetooth & devices → Devices.
2. Find the keyboard.
3. Open the device menu and select Remove device.
4. Enable BT mode on the keyboard again.
5. Press and hold the required shortcut: FN + 1, FN + 2, or FN + 3.
6. Add the keyboard again.

Windows 10

1. Open Settings → Devices → Bluetooth & other devices.
2. Select the keyboard.
3. Click Remove device.
4. Start a new pairing process.
5. Select Add Bluetooth or other device → Bluetooth.
6. Add the keyboard again.

Removing the old Bluetooth pairing does not remove the Windows HID driver and does not affect 2.4 GHz mode.

German QWERTZ layout: why Y and Z are swapped

K681GB-PRO-DE is designed for the German layout. Therefore, the symbols printed on the physical keys differ from those on a standard English US QWERTY keyboard.

For example:

• the Y and Z keys are positioned differently;
• German characters Ä, Ö, Ü, and ß are present;
• the positions of some punctuation marks and special characters differ from the US layout.

How to add the German layout in Windows 11

1. Open Settings → Time & language → Language & region.
2. If German is not listed, click Add a language.
3. Find German and add it.
4. In the language options, make sure the German keyboard has been added.
5. Switch to it using the language indicator on the taskbar.
6. Test the Y, Z, and special character keys.

There is no need to remove the Russian or English layout. You can keep multiple layouts and switch between them.

How to add the German layout in Windows 10

1. Open Settings → Time & Language → Language.
2. Select Add a language.
3. Add the German language.
4. Open its options and make sure the German keyboard is installed.
5. Switch to the German layout using the language indicator on the taskbar.
6. Check that the characters correspond to the physical keys.

If Y and Z type incorrectly

Perform a simple test:

1. Open Notepad.
2. Press the physical key labeled Z.
3. Then press the Y key.

If Windows enters characters as on a US QWERTY layout while the keycaps have German QWERTZ markings, switch the input language to German.

There is no need to reinstall the HID driver or K681GB-PRO-DE Setup V2.0 to fix Y/Z.

Controlling RGB lighting without software

The main RGB functions can be used directly from the keyboard.

Shortcut	Function
FN + INS	Switches between built-in RGB effects.
FN + ENTER	Changes the color in supported effects.
FN + ↑	Increases brightness.
FN + ↓	Decreases brightness.
FN + →	Increases the speed of the dynamic effect.
FN + ←	Decreases the speed of the dynamic effect.
FN + SPACE	Turns the lighting on or off.

Custom lighting without software

K681GB-PRO-DE allows you to create a custom lighting configuration directly from the keyboard.

For custom mode, use:

FN + Backspace

1. Switch to custom lighting mode.
2. Press and hold FN + Backspace to start configuration.
3. Configure the colors of the required keys.
4. When finished, use FN + Backspace again to save.

For more advanced RGB configuration, you can use the proprietary V2.0 software.

Multifunction control knob

K681GB-PRO-DE is equipped with a multifunction control knob.

In normal mode:

• turning it clockwise increases the volume;
• turning it counterclockwise decreases the volume;
• pressing it mutes or unmutes the sound.

Press and hold the knob for approximately 3 seconds to switch it to RGB control mode.

In RGB mode:

• turning the knob changes the brightness;
• pressing it switches between effects.

To return to volume control, press and hold the knob again for approximately 3 seconds.

Switching between Windows and macOS

If the system keys behave unusually, check the selected operating system mode.

For Windows:

FN + W — hold for approximately 3 seconds.

For macOS:

FN + A — hold for approximately 3 seconds.

How to check the battery level

To display the battery level, use:

FN + ALT

The approximate battery level is displayed using the lighting of the number row.

If the battery level is low, connect the keyboard via USB-C.

Sleep mode

When connected wirelessly, the keyboard automatically reduces power consumption after a period of inactivity.

• the lighting may turn off automatically;
• after a longer period of inactivity, the device enters a deep power-saving mode.

To wake the keyboard, press any key and wait for the connection to be restored.

Resetting K681GB-PRO-DE to factory settings

If the keyboard does not work correctly after configuring the software, macros, or lighting, perform a hardware reset.

Press and hold:

FN + ESC

Hold the shortcut for approximately 3 seconds.

After the reset, select the required connection mode again and first test the keyboard without launching the Redragon software.

What K681GB-PRO-DE Setup V2.0 is used for

The proprietary software is used for advanced keyboard configuration.

The supported functions available through the software include:

• key remapping;
• macro creation;
• working with custom profiles;
• advanced RGB configuration.

The proprietary software is not required for USB-C, 2.4 GHz, or Bluetooth connectivity.

Creating macros

1. Launch K681GB-PRO-DE Setup V2.0.
2. Open the macro management section.
3. Create a new macro.
4. Record the required key sequence.
5. If necessary, configure the available delays.
6. Save the macro.
7. Assign it to a supported key.
8. Apply the settings.
9. Test the result.

If the Redragon software does not detect K681GB-PRO-DE

If the keyboard works normally but the proprietary software does not detect the device:

1. Make sure the installed software is specifically for K681GB-PRO-DE.
2. Do not use the older K681MG-RGB-PRO or K681SP-RGB-PRO package instead.
3. Set the keyboard switch to OFF.
4. Connect the keyboard directly to the computer with a USB-C cable.
5. Do not use a USB hub or docking station.
6. Try another USB port.
7. Close other Redragon software.
8. Restart K681GB-PRO-DE Setup V2.0.
9. If necessary, restart Windows.

If software for another K681 version is installed

It is recommended to remove incompatible software before installing K681GB-PRO-DE Setup V2.0.

Windows 11

1. Open Settings → Apps → Installed apps.
2. Find the Redragon software for another K681 version.
3. Open the menu next to its name.
4. Select Uninstall.
5. Restart Windows.
6. If necessary, perform a FN + ESC reset.
7. Test the keyboard without the software.
8. Then install K681GB-PRO-DE Setup V2.0.

Windows 10

1. Open Settings → Apps → Apps & features.
2. Find the incompatible Redragon software.
3. Select it and click Uninstall.
4. Restart Windows.
5. If necessary, perform FN + ESC.
6. Test the keyboard without the software.
7. Install the correct K681GB-PRO-DE package.

Removing the proprietary software does not remove the standard Windows HID driver.

If Bluetooth and 2.4 GHz do not work

First test the keyboard via USB.

1. Set the switch to OFF.
2. Connect the USB-C cable.
3. Test typing.

If the keyboard works in wired mode:

1. fully charge it;
2. check the position of the mode switch;
3. repeat the 2.4 GHz pairing process using FN + 4;
4. remove the old Bluetooth pairing and create it again;
5. try another USB port for the wireless receiver.

If wired mode works correctly, the problem is usually not related to the main Windows HID driver.

If the 2.4 GHz connection drops intermittently

1. Fully charge the keyboard.
2. Connect the USB receiver directly to the computer.
3. Do not use a USB hub.
4. Try another USB port.
5. Move the keyboard closer to the receiver.
6. Move the receiver away from sources of strong radio interference.
7. If necessary, repeat the pairing process using FN + 4.

If Bluetooth disconnects intermittently

1. Check the keyboard battery level.
2. Make sure the correct Bluetooth profile is selected.
3. Move the keyboard closer to the computer.
4. Remove the old Bluetooth pairing and add the device again.
5. Test the keyboard with another computer or another Bluetooth device.

If K681GB-PRO-DE works reliably over USB and 2.4 GHz but Bluetooth disconnects only on one computer, also check that computer’s Bluetooth adapter and its driver.

If one key does not work

K681GB-PRO-DE supports replaceable mechanical switches. Therefore, if one key stops working, you can first check the switch itself.

1. Turn off the keyboard.
2. Disconnect the USB-C cable.
3. Remove the keycap from the problematic key.
4. Carefully remove the switch using a suitable switch puller.
5. Check the metal contacts on the switch.
6. Install a known-good compatible switch.
7. Turn on the keyboard and test it again.

If the problem moves with the switch, the switch is most likely faulty.

If the same position still does not work with a known-good switch, there may be a problem with the hot-swap socket, PCB, or another hardware component.

If a key registers twice

If a single keypress sometimes enters two identical characters:

1. Test the key in a standard text editor.
2. Close K681GB-PRO-DE Setup V2.0 and repeat the test.
3. Test the keyboard in wired mode.
4. If the problem persists, turn off the keyboard.
5. Replace the suspected switch with a known-good one.
6. Repeat the test.

If the double input moves with the switch, the switch is faulty. If it remains in the same position, there may be a problem with the hot-swap socket or PCB.

If the RGB lighting for one key does not work

If the key itself works but its lighting does not:

1. switch between several RGB effects;
2. increase the brightness using FN + ↑;
3. check the custom RGB profile;
4. check the settings in K681GB-PRO-DE Setup V2.0;
5. perform a FN + ESC reset;
6. test the keyboard after restarting it.

If the LED for one key position does not work in any mode but the key itself works correctly, the RGB LED may have a hardware fault. Replacing the mechanical switch usually does not fix this problem.

If Windows does not detect K681GB-PRO-DE at all

For troubleshooting, use wired mode:

1. set the switch to OFF;
2. connect the USB-C cable directly to the computer;
3. try another USB port;
4. do not use a USB hub;
5. if possible, test another known-good USB-C cable that supports data transfer;
6. restart Windows;
7. test the keyboard on another computer.

If the device works on another computer, you can force Windows to detect the HID keyboard again.

Re-detecting the keyboard in Windows

1. Connect K681GB-PRO-DE via USB.
2. Right-click the Start button and select Device Manager.
3. Expand Keyboards.
4. If several HID keyboards are listed, do not remove all of them.
5. Disconnect K681GB-PRO-DE and identify which entry disappears.
6. Reconnect the keyboard and make sure the corresponding entry appears again.
7. Right-click the specifically identified device.
8. Select Uninstall device.
9. Disconnect the keyboard for a few seconds.
10. Connect it again.

Windows will automatically reinstall the standard HID driver.

If K681GB-PRO-DE is not detected over USB even on another computer, installing different Redragon software will usually not help. In this case, check the USB-C cable, the connector, and the keyboard itself.