Need help?Do you have a question about the Cooler Master CK721 and is the answer not in the manual?
Covers turning on Bluetooth, pairing, and connecting to devices.
Steps for manually pairing Bluetooth devices.
How to switch between already paired Bluetooth devices.
Covers entering 2.4 GHz mode and automatic connection.
Steps for manually pairing the 2.4 GHz dongle.
Behavior of the CAPSLK key indicator light.
Indicator lights during Bluetooth/2.4 GHz connection.
Indicator lights during charging.
Indicator behavior for low battery levels.
Indicator lights shown when pressing FN key for pairing status.
General| Polling rate | 125, 1000 Hz |
|---|---|
| Frequency band | 2.4 GHz |
| Keyboard layout | QWERTZ |
| Multimedia keys | Yes |
| Pointing device | No |
| Device interface | USB + RF Wireless + Bluetooth |
| Bluetooth version | 5.1 |
| Keyboard language | German |
| Recommended usage | Universal |
| Keyboard key switch | Mechanical |
| Keyboard form factor | 65% |
| Keyboard key switch technology | Cherry MX Brown |
| Material | Aluminium, Plastic |
| Product color | Gray |
| Backlight type | RGB LED |
| Backlight color | Red/Green/Blue |
| Surface coloration | Monochromatic |
| Mac operating systems supported | Mac OS X 10.10 Yosemite, Mac OS X 10.11 El Capitan, Mac OS X 10.12 Sierra, Mac OS X 10.13 High Sierra, Mac OS X 10.15 Catalina, Mac OS X 10.15.3 Catalina, Mac OS X 11.0 Big Sur |
| Mobile operating systems supported | Android, iOS |
| Windows operating systems supported | Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows 8.1, Windows 8.1 Enterprise, Windows 8.1 Enterprise x64, Windows 8.1 Pro, Windows 8.1 Pro x64, Windows 8.1 x64 |
| Number of products included | 1 pc(s) |
| Package depth | 352 mm |
| Package width | 232 mm |
| Package height | 52 mm |
| Package weight | 1221 g |
| Cable length | 1.8 m |
| Battery capacity | 2000 mAh |
| Power source type | Battery, USB |
| Battery life (max) | 73 h |
| Master (outer) case width | 372 mm |
| Master (outer) case height | 252 mm |
| Master (outer) case length | 560 mm |
| Quantity per master (outer) case | 10 pc(s) |
Weight and Dimensions| Keyboard weight | 764 g |
|---|---|
| Keyboard dimensions (WxDxH) | 118 x 334 x 37 mm |
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