Cooler Master CK721 Wireless Setup Guide

IMPORTANT

Please charge your new keyboard for at least 2 hours before using for the first time.

BLUETOOTH MODE

Turning On Bluetooth for the First Time

1. Toggle the physical switch on the side of the keyboard to enter Bluetooth Mode.
2. Press and hold FN + DEL/PGUP/PGDN for 5 seconds to enter pairing mode. The indicator will rapidly flash BLUE 3 times one every second to confirm you are in Pairing Mode.
3. If pairing is successful, the indicator will light up with a solid WHITE light for 3 seconds. If unsuccessful, the keyboard will enter Sleep Mode after 30 seconds. In Sleep Mode, all the keyboard lighting will be turned off.

Turning On Bluetooth After the First Time

1. When the Bluetooth mode is activated, the keyboard will connect to the previous synced wireless device (DEL/PGUP/PGDN) automatically within seconds.
2. If successfully connected, the indicator will light up with a solid WHITE light for 3 seconds. If unsuccessful, the keyboard will enter Sleep Mode after 30 seconds. In Sleep Mode, all the keyboard lighting will be turned off.
3. To connect to a specific paired device, press FN + DEL/PGUP/PGDN after activating Bluetooth mode to connect to the corresponding device. The keyboard will connect to the device if successful and enter sleep mode after 30 seconds if device is not found or fails to connect.

Switching to Wired Mode

If the physical switch is toggled to Bluetooth or 2.4 GHz Mode, the keyboard will switch to Wired Mode automatically as the physical switch is toggled to Wired and it is connected to a PC or laptop.

If the physical switch is toggled to Wired Mode, the keyboard will switch to Wired Mode automatically as it is connected to a PC or laptop.

CHARGING THE KEYBOARD

If the physical switch is toggled to Bluetooth or 2.4 GHz Mode, the keyboard will remain connected to the wireless device and begin charging when it is plugged into a PC, laptop, or power source. The indicator light will be RED when charging and change to GREEN when battery level is full.

If the physical switch is toggled to Wired Mode, the keyboard will begin charging when it is plugged into a PC, laptop, or power source. The indicator light will be RED when charging and change to GREEN when battery level is full.

INDICATOR LIGHT RULE

• The CAPSLK indicator will light up with a solid WHITE light when turn on CAPSLK key, and turn off when turn off CAPLSK key.
• In Pairing Mode, the indicator will rapidly flash BLUE 3 times one every second.
• In Connecting Mode, the indicator will continuously flash a BLUE light one every second.
• If Pairing / Connecting is successful, the indicator will light up with a solid WHITE light for 3 seconds.

MANUALLY PAIRING DEVICES TO THE KEYBOARD

Press FN + DEL/PGUP/PGDN to switch to the corresponding paired device.

2.4 GHZ MODE

Using 2.4 GHz - An Overview

1. Toggle the physical switch on the side of the keyboard to enter 2.4 GHz Mode. The indicator will continuously flash a BLUE light one every second to confirm it is trying to connect to a device.
2. Plug the included dongle into the desired device. The keyboard should automatically connect to the device.
3. If successfully connected, the indicator will light up with a solid WHITE light for 3 seconds. If unsuccessful, the keyboard will enter Sleep Mode after 30 seconds. In Sleep Mode, all the keyboard lighting will be turned off.
4. To pair with other devices, simply unplug the dongle and re-plug into another device. If pairing is successful, the indicator will light up with a solid WHITE light for 3 seconds. If unsuccessful, the keyboard will enter Sleep Mode after 30 seconds. In Sleep Mode, all the keyboard lighting will be turned off.

Manually Pairing 2.4 GHz Dongle to the Keyboard

1. Toggle the physical switch on the side of the keyboard to enter 2.4 GHz Mode. Press and hold FN + Enter for 5 seconds to enter pairing mode. The indicator will rapidly flash BLUE 3 times one every second to confirm you are in Pairing Mode.
2. Plug the included dongle into the desired device. The keyboard should automatically connect to the device.
3. If pairing is successful, the indicator will light up with a solid WHITE light for 3 seconds. If unsuccessful, the keyboard will enter Sleep Mode after 30 seconds. In Sleep Mode, all the keyboard lighting will be turned off.

Indicator Status Indicator

When the keyboard is plugged into a PC, laptop, or power source, the indicator will show a RED light when charging and change to GREEN when battery level is full.

*In Wired Mode, the indicator will change to GREEN for 3 seconds then turn off when the battery level is full.

Low Battery Scenario

1. When the battery level falls below 15%, the indicator will rapidly flash RED light 3 times every 20 seconds. This indicator lighting will repeat until the keyboard enter Sleep Mode or is connected to the PC, laptop or power source.
2. When the battery level falls below 5%, the keyboard will go into Deep Sleep Mode. All lighting will be turned off - including the indicator.

Indicator on DEL/PGUP/PGDN

Press FN will show the pairing status of each location (DEL, PGUP or PGDN) with WHITE light.