QO Max Wireless Mechanical Numpad
Keychron
Fully Assembled Version Numpad
1x Fully Assembled Numpad Including
1x Aluminum Case
1x PCB
1x Steel Plate
1x Sound Absorbing Foam
1x IXPE Foam
1x PET Film
1x Latex Bottom Pad
1x Bottom Case Acoustic Foam
1x Bottom Case PET Film
8x Gaskets (6 Installed and 2 in the Box)
3 sets x Stabilizers
1 set x Keycaps (PBT Double-shot)
1 set x Switches
Cable
1x Type-C to Type-C Cable
1x Type-A to Type-C Adapter
1x Extension Adapter for Receiver Receiver
1x Type-A 2.4 GHz Receiver Tools
1x Keycap & Switch Puller
1x Screwdriver
1x Hex Key
Barebone Version
Numpad Kit
1x Numpad Kit (Without Keycaps & Switches)
Including
1x Aluminum Case
1x PCB
1x Steel Plate
1x Sound Absorbing Foam
1x IXPE Foam
1x PET Film
1x Latex Bottom Pad
1x Bottom Case Acoustic Foam
1x Bottom Case PET Film
8x Gaskets (6 Installed and 2 in the Box)
3 sets x Stabilizers
Cable
1x Type-C to Type-C Cable
1x Type-A to Type-C Adapter
1x Extension Adapter for Receiver Receiver
1x Type-A 2.4 GHz Receiver
Tools
1x Keycap & Switch Puller
1x Screwdriver
1x Hex Key
Quick Start Guide
1 Connect 2.4 GHz Receiver
Connect the 2.4 GHz receiver to the device USB port.
Switch toggle to 2.4 GHz mode
Note: For the best wireless experience, we recommend using the extension adapter for receiver and putting the 2.4 GHz receiver somewhere on your desk close to your numpad for a low rate of latency and fewer signal interferences.
2 Connect Bluetooth
Switch toggle to Bluetooth
Press Fn + O (for 4 seconds) and pair with
device named Keychron Q0 Max
3 Connect Cable
4 The VIA Key Remapping Software
Please visit usevia.app to use the online VIA software to remap the keys. If the VIA cannot recognize your numpad, please reach our support to get the instruction.
*The online VIA software can only run on the latest version of Chrome, Edge, and Opera browsers yet.
*VIA only works when the numpad is connected by wire to the computer.
5 The Backlight
Press Fn + num clear to change the lighting effect
Press Fn + 0 to turn the backlight on/off
6 Adjust The Backlight Brightness
Press Fn + / to increase the backlight brightness
Press Fn + 8 to decrease the backlight brightness
7 Adjust The Backlight Speed
Press Fn + 5 to increase the light effect speed
Press Fn + 2 to decrease the light effect speed
8 Factory Reset
Troubleshooting? Don’t know what’s going on with the numpad?
1. Download the right firmware and QMK Toolbox from our website.
2. Unplug the power cable and switch the numpad to Cable mode.
3. Remove the number “0” and “.” keycaps to find the reset button on the PCB.
4. Hold the reset key first, then plug the power cable into the numpad. Release the reset key after 2 seconds, and the numpad will now enter DFU mode.
5. Flash the firmware with the QMK Toolbox.
6. Factory reset the numpad by pressing Fn + 9 + 1 (for 4 seconds).
*Step by step guide can be found on our website.
Warranty
QO0 MAX WIRELESS MECHANICAL NUMPAD SPECIFICATIONS
Number of keys: 27
Switch type: Mechanical
Battery: 1800mAh
Wireless working time (RGB): Up to 50 hours (Lowest brightness)
Charging time: Around 2.5 hours
Charging port: USB Type-C
Mode: 2.4 GHz/ Cable / Bluetooth
Wireless operating distance: Within 10 meters (open space)
Name of Bluetooth device: Keychron QO Max
Operating environment: -10 to 50°C
Technical specifications can be subjected to change without notice, we apologize for any
inconvenience caused.
QO MAX WIRELESS MECHANICAL NUMPAD OVERVIEW
DEFAULT KEY LAYOUT:
LAYER O: This layer will be activated
when your numpad is connected.
LAYER 1: This layer will be activated
when you press the MO(1) key.
LAYER 2 / LAYER 3 / LAYER 4: This is a blank layer.
KEY DESCRIPTION
Key Description
Bright- Backlight Decrease
Bright+ Backlight Increase
Prvs Previous
Play Play/Pause
Next Next
RGB Toggle Turn Backlight on/off
RGBMd+ RGB Mode Next
Sat+ Saturation Increase
Sat- Saturation Decrease
2.4G 2.4 GHz Host
RGBMd- RGB Mode Previous
RGB SPI RGB Speed Increase
RGB SPD RGB Speed Decrease
Mow Leeriuilbeacises
Mom Lerulbeaciot
Mor Lassies
Moy Laertailbesciated
BTH1 Bluetooth Host 1
BTH2 Bluetooth Host 2
BTH3 Bluetooth Host 3
LED STATUS OVERVIEW
FUNCTION DESCRIPTION:
CHARGING
Plug the cable into a USB port and plug the other end into the numpad port. Charging Indicator:
A red light will stay on while charging; Fully charged in around 2.5 hours, a green battery indicator will
appear. If the power is low, the red light will blink.
*The Keychron numpad is compatible with all USB ports. Please use a 5V 1A adapter or USB 3.0 for
the best performance. The Keychron QO Max can be charged in 2.4 GHz/Cable/Bluetooth mode.
**This product supports up to 5V charging voltage and 1A charging current. We are not responsible
for any problems caused by improper charging.
2.4 GHZ / BLUETOOTH / WIRED MODE (MODE TOGGLE)
2.4 GHZ WIRED MODE
1. Connect the 2.4 GHz receiver to your device’s USB Port.
2. Switch the toggle switch to the 2.4 GHz option. The numpad will automatically connect to your device.
*Press the key combination “Fn” + “X” to enter the forced pairing mode. During this period, it is recommended that the numpad be within 20cm of the receiver.
WIRED MODE
1. Switch the toggle switch to the Cable option (it only works when a USB cable is plugged in).
2. Connect our cable with your PC and numpad.
3. Backlighting will be turned on.
*Under Wired Mode, numpad will not enter into Battery Saver Mode.
BLUETOOTH MODE
1. Switch the toggle switch to the Bluetooth option.
2. Backlighting will be turned on.
3. Hold “Fn+O” key for 4 seconds to activate Bluetooth pairing (the Bluetooth indicator fast
flashes for 3 minutes to detect pairing).
4. Search for the Bluetooth device “Keychron QO Max” on your device and connect it (the Bluetooth
indicator goes off after successful pairing).
Note: This numpad supports pairing up to 3 devices simultaneously via key combination “Fn” + “O” /
*The Bluetooth indicator will continue to flash for 3 minutes.
**Slow or failed connections may exist due to different Bluetooth versions, please make sure all the settings are correct.
SWITCH BLUETOOTH DEVICES
Short press key combination 
to switch to other device.
RECONNECT:
1. Switch the numpad to the Bluetooth option to activate the numpad.
2. The Bluetooth indicator flashes for 4 seconds and automatically pairs with the last paired device.
3. If the Bluetooth indicator is off, press any button to enter the connection again.
*The numpad must have been paired with the device to perform this function.
TURN OFF THE NUMPAD
Switch the numpad to the Cable option and unplug the power cable.
BACKLIGHT SETTING
Short press key combination “Fn” + “0” to turn the backlight on/off.
Short press key combination “Fn” + “num clear” / “Fn” + “7” to switch between different types of lighting effects.
TROUBLESHOOTING
If unable to pair numpad to device, confirm that the device you’re trying to pair with is Bluetooth-capable.
If so, restart the device and try pairing it with the numpad again.
Note: On a Windows computer, a new Bluetooth connection will sometimes require additional
software updates—a process that may still be ongoing after a message appears indicating a successful
completion. Wait at least 20 minutes after pairing to make sure all updates are completed before
restarting the computer.
Confirm that the device is configured to accept Bluetooth connections (Windows) and supports an
external numpad (HID profile).
Go to Bluetooth Devices > Open Settings and select the following:
Allow Bluetooth devices to find this computer
Allow Bluetooth devices to connect to this computer
Alert me when a Bluetooth device wants to connect
My numpad isn’t working in Bluetooth mode.
For the computer/smartphone:
Go to your device Bluetooth settings>Select the numpad and remove/delete/unpair it.
Then restart your device.
For the numpad:
Turn the numpad off and back on. Then reconnect it to your device.
Wireless connection is interrupted even within 10 meters.
Check if the numpad is resting on a metal surface that can iinterfere with the wireless signal.
Safety Precaution:
Keep the product, accessories and packaging parts out of the reach of children to prevent any accidents
and choking hazards.
Always keep the product dry to avoid corrosion.
Do not expose the product to extreme temperatures below -10°C(5°F) or above 50°C(131°F) to
preserve the lifespan of the numpad.
Keychron, Inc.
Dover, DE 19901, United States
Find us at:
https: /www.keychron.com
