1. Introducció
The Darkflash GD68 is a versatile 68-key mechanical keyboard designed for various operating systems including Windows, Android, Apple, and iOS. It offers three connection modes: Bluetooth, 2.4G wireless, and wired (USB Type-C), allowing seamless switching between up to 5 devices. Featuring PBT two-color keycaps, hot-swappable red switches, and a compact layout, the GD68 provides a responsive and customizable typing experience.

Figure 1: Darkflash GD68 Mechanical Keyboards (Ink Dyeing and Jasmine colors)
Video 1: Darkflash GD68 Product Overview
2. Especificacions
| Característica | Descripció |
|---|---|
| Nom del producte | GD68 |
| Disseny | 68 keys, compact design |
| Material de claus | PBT plastic, two-color injection molding |
| Interruptors | Red Switch (Linear Axis), Hot-swappable (full-key shaft seat) |
| Força operativa | 45 ± 10 gf |
| Carrera de conducció | 2.0 ± 0.6 mm |
| Viatges totals | 4.0 ± 0.4 mm |
| Canvia la vida | 50 milions de vegades |
| Tipus de llum de fons | No backlight (features indicator lights) |
| Connectivitat | Bluetooth, 2.4G Wireless, Wired (USB Type-C) |
| Connector USB | USB tipus C |
| Longitud del cable de dades | 1500 mm |
| Bateria | Bateria recarregable de polímer de liti de 1200 mAh |
| Temps de càrrega | Aprox. 2 hores |
| Temps d'ús | Approx. 90 days (laboratory test results, may vary) |
| Compatibilitat del sistema | Windows, Android, Apple (Mac), iOS |
| Teclat de mida completa | No (68 keys) |
| Suport de canell | No |
| Alçada ajustable | Yes (double adjustable non-slip feet) |
| Mida del producte | 313.2 * 103.7 * 30.7 mm ± 5 mm |

Figura 2: Paràmetres detallats del producte

Figure 3: Red Switch (Linear Axis) Characteristics
3. Configuració i connexió
The Darkflash GD68 keyboard supports three connection modes: 2.4G wireless, Bluetooth, and wired (USB Type-C). You can connect up to 5 devices simultaneously (1 via 2.4G, 3 via Bluetooth, 1 via wired).
3.1 Power On/Off and Mode Switch
Locate the ON/OFF switch on the back of the keyboard. Slide it to the "ON" position to power on the keyboard. The power-on indicator light will illuminate.

Figure 4: Power Switch and USB Receiver Storage
3.2 Connexió sense fil 2.4G
- Connecteu el receptor USB a un port USB disponible del vostre ordinador o portàtil.
- Ensure the keyboard's power switch is in the "ON" position.
- Premeu breument FN + R keys simultaneously to switch to 2.4G channel.
- Per entrar al mode de vinculació, manteniu premut FN + R for 3-5 seconds. The green light will flash quickly.
- Insert the receiver within 20 seconds. If the connection is successful, the green light will turn solid, and then turn off. If pairing fails, the keyboard will power off after 20 seconds. Exit pairing mode by pressing FN + R de nou.

Figure 5: 2.4G Wireless Connection Steps
3.3 Connexió Bluetooth
The keyboard supports up to three Bluetooth connections (BT1, BT2, BT3).
- Ensure the keyboard's power switch is in the "ON" state; the power-on indicator light should be on.
- Premsa curta FN + Q, FN + W, o FN + E to select one of the Bluetooth groups (BT1, BT2, BT3). The blue light will flash nine times every time a device is switched, indicating the switch is successful.
- Per entrar al mode d'emparellament Bluetooth, premeu i manteniu premut FN + Q/W/E (for the selected group) for 3-5 seconds. The blue light of the corresponding button indicator will flash quickly.
- On your device (computer, tablet, phone), search for Bluetooth devices and select "Darkflash GD68".
- After the connection is successful, the indicator light stops flashing, indicating that the code pairing is successful.

Figure 6: Bluetooth Connection Steps
3.4 Connexió per cable
- Connect the Type-C end of the charging cable to the keyboard and the USB end to your computer.
- In wired mode, the "ON/OFF" switch has no function.
- Premsa curta FN + T to switch to wired mode.

Figure 7: Wired Connection Diagram

Figure 8: Multi-Device Connectivity Overview
4. Instruccions de funcionament
4.1 Key Functions and Combinations
The GD68 features a compact 68-key layout. Many functions are accessed via the FN key in combination with other keys. The keyboard supports full-key no punch design, ensuring all key combinations are registered accurately and promptly.
- FN + 1 a 0: Typically used for F1-F10 functions or other programmed shortcuts.
- FN + - / =: Often used for F11/F12 functions.
- FN + Q/W/E: Switch between Bluetooth devices (BT1, BT2, BT3).
- FN + R: Switch to 2.4G wireless mode.
- FN + T: Switch to wired mode.
- FN + Guanyar: Tecla de bloqueig/desbloqueig de Windows.
- FN + Alt: Switch between Mac and Windows layouts (if applicable, check specific keycap legends).
- FN + Canvi: Access secondary functions printed on keycaps (e.g., multimedia controls, brightness).
Refer to the keycap legends for specific secondary functions accessible via the FN clau.
4.2 Visible State Indicator Lights
The keyboard features four visual status indicator lights located near the spacebar. These lights provide quick information about the keyboard's power status and connection mode.
- Indicació d'alimentació: Indicates battery status (e.g., low battery, charging).
- Estat de la connexió: Shows the active connection mode (2.4G, Bluetooth 1/2/3, or wired).
- Estat de l'aparellament: Flashes during pairing mode for 2.4G or Bluetooth.

Figure 9: Visible State Indicator Lights
4.3 Gestió de la bateria
The keyboard is equipped with a 1200mAh rechargeable lithium polymer battery. Connect the keyboard via the USB Type-C cable to charge it. A full charge takes approximately 2 hours and provides up to 90 days of usage time under laboratory conditions (actual usage may vary).

Figura 10: Durada de la bateria i informació de càrrega
5. Manteniment
5.1 Commutadors intercanviables en calent
The GD68 features a full-key hot-swappable design, allowing you to easily replace the mechanical switches without soldering. This enables customization of typing feel and simplifies switch replacement if needed.
- Traieu suaument la tapa de les tecles amb un extractor de taps de tecles.
- Feu servir un extractor d'interruptors per extreure amb cura l'interruptor de la placa de circuit imprès.
- Alineeu els pins del nou interruptor amb els forats de la placa de circuit imprès i premeu fermament fins que encaixi al seu lloc.
- Substitueix la tapa de les tecles.
Caution: Ensure the switch pins are straight before inserting to avoid bending or damaging the PCB sockets.

Figure 11: Hot-Swappable Switch Replacement
5.2 Neteja
Per mantenir el rendiment i l'aspecte del teclat:
- Desconnecteu el teclat de tots els dispositius abans de netejar-lo.
- Feu servir un raspall suau o aire comprimit per eliminar la pols i les restes que hi ha entre les tecles.
- For stubborn dirt, gently remove keycaps (refer to 5.1) and clean with a damp cloth or mild cleaning solution. Ensure keycaps are completely dry before reattaching.
- Wipe the keyboard surface with a soft, lint-free cloth.
- Eviteu utilitzar productes químics o materials abrasius.
6. Solució De Problemes
- Keyboard not connecting via 2.4G or Bluetooth:
- Assegureu-vos que el teclat estigui encès i completament carregat.
- Verify the correct mode is selected (FN+R for 2.4G, FN+Q/W/E for Bluetooth).
- Re-enter pairing mode (hold FN+R or FN+Q/W/E for 3-5 seconds).
- For 2.4G, try plugging the USB receiver into a different port.
- For Bluetooth, remove the keyboard from your device's Bluetooth list and attempt to pair again.
- Assegureu-vos que no hi hagi altres dispositius sense fil que causin interferències.
- Les tecles no responen o s'escriuen dues vegades:
- Check if the keyboard is in wired mode (FN+T) and the cable is securely connected.
- If using wireless, ensure the battery is not low.
- Consider if a switch might be faulty. Thanks to the hot-swappable design, you can easily replace individual switches (refer to 5.1).
- Clean under the keycaps to remove any debris.
- Indicator lights not working as expected:
- The GD68 does not have full RGB backlighting; it features specific indicator lights for status.
- If a light is not illuminating, ensure the keyboard is powered on and functioning.
- A flashing light usually indicates pairing mode or low battery.
- El teclat no es carrega:
- Ensure the USB Type-C cable is securely connected to both the keyboard and a power source/computer.
- Prova un altre port USB o cable de càrrega.
- Verifiqueu que la font d'alimentació estigui activa.
7. Consells d'usuari
- Multi-Device Efficiency: Aprofiteu al màximtage of the keyboard's ability to connect to up to 5 devices. Assign different Bluetooth channels (BT1, BT2, BT3) to your tablet, phone, and a secondary computer for quick switching.
- Customization with Hot-Swapping: Experiment with different types of 3-pin mechanical switches to find your preferred typing feel. The hot-swappable design makes this process simple and risk-free.
- Understanding Indicator Lights: Pay attention to the indicator lights near the spacebar. They provide crucial feedback on battery status, connection mode, and pairing status, helping you quickly diagnose issues.
8. Garantia i Suport
For specific warranty information and technical support, please refer to the documentation provided with your purchase or contact the Darkflash Official Store directly. Keep your proof of purchase for warranty claims.
The manufacturer warrants this product to be free from defects in materials and workmanship under normal use for a period specified at the time of purchase. This warranty does not cover damage caused by accident, abuse, misuse, or unauthorized modification.





