Introducció
This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Cooler Master CK721 65% Hybrid Wireless Mechanical Gaming Keyboard. The CK721 is designed for versatile use, offering both wired and wireless connectivity options, customizable RGB lighting, and a compact layout.
Configuració
Contingut del paquet
- Cooler Master CK721 Keyboard
- Cable USB
- Repòs de canell
Connexió del teclat
The CK721 supports three connectivity modes: wired (USB Type-C), 2.4 GHz wireless, and Bluetooth 5.1. Use the switch located on the side of the keyboard to select your preferred mode.

Image: The Cooler Master CK721 keyboard highlighting its USB-C port and the 2.4 GHz wireless dongle, illustrating its hybrid wireless technology.
Wired Connection (USB Type-C)
- Connecteu el cable USB tipus C proporcionat al port del teclat.
- Connecteu l'altre extrem del cable a un port USB disponible de l'ordinador.
- Ensure the mode switch on the keyboard is set to the wired (USB) position.
- El teclat es detectarà automàticament i estarà llest per al seu ús.
Connexió sense fil de 2.4 GHz
- Locate the 2.4 GHz wireless dongle (USB receiver) included with your keyboard.
- Connecteu el dongle a un port USB disponible de l'ordinador.
- Set the mode switch on the keyboard to the 2.4 GHz wireless position.
- El teclat s'ha de connectar automàticament al dongle.
Connexió Bluetooth 5.1
- Set the mode switch on the keyboard to the Bluetooth position.
- A l'ordinador o dispositiu, activeu el Bluetooth i cerqueu dispositius nous.
- Select "Cooler Master CK721" from the list of available devices to pair.
- Seguiu les indicacions de la pantalla per completar el procés de vinculació.
Attaching the Wrist Rest
The low-friction cloth wrist rest can be magnetically attached to the front edge of the keyboard for enhanced comfort during extended use.

Image: The Cooler Master CK721 keyboard shown with its soft wrist rest attached, emphasizing ergonomic design.
Software Installation (MasterPlus+)
For advanced customization of RGB lighting, key remapping, and macro creation, download and install the Cooler Master MasterPlus+ software from the official Cooler Master website. The software is compatible with Windows 8 and above.

Image: A visual representation of the MasterPlus+ software interface, demonstrating options for lighting and macro customization.
Instruccions de funcionament
Funcions clau i disseny
The CK721 features a 65% layout, providing a compact form factor while retaining essential keys. Many functions are accessible via the Function (Fn) key combinations.

Imatge: Una imatge completa de dalt a baix view of the Cooler Master CK721 keyboard, showcasing its 65% layout and RGB backlighting.
3-Way Customizable Dial
The precision dial located on the top right of the keyboard offers tactile controls for various functions. It can be customized via the MasterPlus+ software to control volume, RGB brightness, and other settings.
- Torn: Adjusts selected parameter (e.g., volume up/down).
- Premsa: Toggles function (e.g., mute/unmute, change RGB mode).

Imatge: Una imatge detallada view of the 3-way customizable dial, illustrating its functionality for controlling various settings.
Switching Operating Systems
The CK721 is compatible with Windows, macOS, iOS, and Android. You can easily switch between device profiles with a simple keypress, as indicated by the universal compatibility feature.

Image: A graphic illustrating the keyboard's universal compatibility across Windows, macOS, iOS, and Android operating systems.
RGB Lighting and Customization
The keyboard features customizable RGB lighting. You can adjust lighting modes and colors directly on the keyboard using Fn key combinations or through the MasterPlus+ software for more detailed control.
Manteniment
Neteja del teclat
- Desconnecteu el teclat de l'ordinador abans de netejar-lo.
- Use a soft, dry cloth to wipe down the keycaps and chassis.
- For deeper cleaning, use compressed air to remove dust and debris from between the keys.
- Eviteu utilitzar productes químics o materials abrasius.
Substitució de la tapa de tecles i l'interruptor
The CK721 features a removable aluminum top plate, which simplifies access for routine maintenance, including changing keycaps and hot-swappable mechanical switches.

Image: The Cooler Master CK721 keyboard with its removable aluminum top plate, demonstrating ease of access for maintenance.

Imatge: Un primer pla view of the mechanical switches on the Cooler Master CK721 keyboard, highlighting their design.
- Carefully remove the aluminum top plate.
- Use the provided keycap puller to remove keycaps.
- Use the switch puller to remove mechanical switches.
- Insert new switches and keycaps, ensuring they are properly seated.
- Reattach the aluminum top plate.
Battery Care (for Wireless Use)
- Charge the keyboard using the USB Type-C cable when the battery is low.
- Eviteu descarregar completament la bateria amb freqüència per allargar-ne la vida útil.
- Guardeu el teclat en un lloc fresc i sec si no l'utilitzeu durant períodes prolongats.
Resolució de problemes
El teclat no respon
- Amb cable: Assegureu-vos que el cable USB estigui connectat correctament tant al teclat com a l'ordinador. Proveu un port o cable USB diferent.
- Sense fil de 2.4 GHz: Verify the dongle is plugged in and the keyboard switch is in 2.4 GHz mode. Re-pair if necessary.
- Bluetooth: Check if Bluetooth is enabled on your device and the keyboard is paired. Try unpairing and re-pairing the device.
- Assegureu-vos que la bateria del teclat estigui carregada.
Problemes d'il·luminació RGB
- Check RGB settings via Fn key combinations or MasterPlus+ software.
- Ensure the MasterPlus+ software is up to date.
- Perform a factory reset if issues persist (refer to software or Cooler Master support for specific instructions).
Software Not Detecting Keyboard
- Ensure the keyboard is connected via wired USB Type-C for initial software detection.
- Update MasterPlus+ software to the latest version.
- Reinicieu l'ordinador i torneu-ho a provar.
Especificacions
| Característica | Detall |
|---|---|
| Marca | Cooler Master |
| Sèrie | CK721 |
| Número de model | CK-721 |
| Tecnologia de connectivitat | Bluetooth, USB-C, 2.4 GHz Wireless |
| Descripció del teclat | Teclat de joc mecànic |
| Tipus de canvi | Click Blue Switches (Hot-swappable) |
| Disseny | 65% |
| Il·luminació de fons | RGB |
| Característiques especials | 3-Way Customizable Dial, Removable Aluminum Top Plate, Wrist Rest |
| Compatibilitat de sistemes operatius | Android, iOS, Mac OS, Windows 8 and above |
| Pes de l'article | 2.66 lliures |
| Dimensions del producte | 13.15 x 4.65 x 3.7 polzades |
Característiques clau
- Reliable Mechanical Switches: Durable switches rated for 50 million keystrokes, offering responsiveness and tactile feedback.
- Tecnologia sense fil híbrida: Seamless switching between wired Type-C, 2.4 GHz for low-latency, and Bluetooth 5.1 for broad compatibility.
- Compatibilitat universal: Works with Windows, Mac OS, iOS, and Android devices.
- 3-Way Customizable Dial: Precision control for media, lighting, and other functions, configurable via software.
- Portable 65% Layout & Soft Wrist Rest: Compact design with an included low-friction cloth wrist rest for comfort and portability.
Producte acabatview Vídeo
Video: An official product video from Cooler Master showcasing the CK721 keyboard's features, including its design, connectivity options, and customizable dial. This video highlights the keyboard's versatility for home, work, and play environments.
Informació de la garantia
Cooler Master products are covered by a limited warranty. Please refer to the official Cooler Master weblloc web o l'embalatge del producte per conèixer els termes i condicions de garantia específics aplicables a la vostra regió.
Suport
For technical assistance, driver downloads, or further product information, please visit the official Cooler Master support weblloc:
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