Isingeniso
The MMD KM40 is a versatile mechanical keyboard designed for both gaming and professional use. Featuring a robust CNC aluminum body and an O-Ring gasket structure, it offers a premium typing experience. With three connection modes (Bluetooth 5.0, 2.4G Wireless, and wired Type-C), QMK/VIA compatibility for full key customization, and vibrant RGB lighting, the KM40 provides flexibility and performance for various computing environments.
Okuqukethwe Kwephakheji
- MMD KM40 Mechanical Keyboard
- Type-A to Type-C Data Cable
- Incwadi Yomsebenzisi (le dokhumenti)
Setha
1. Ukushaja Ikhibhodi
Before initial use, ensure the keyboard is fully charged. Connect the provided Type-A to Type-C data cable to the keyboard's Type-C port and a computer's USB port. A full charge typically takes a few hours.

Important Charging Precaution: Always use a computer's standard USB port for charging. Avoid using fast chargers or high-current charging adapters, as this may damage the battery or PCB and void the warranty.
2. Izindlela zokuxhuma
The MMD KM40 supports three connection methods:

The MMD KM40 supports Bluetooth, 2.4G wireless, and wired Type-C connections.
Wired Connection (Type-C)
- Connect the Type-C end of the data cable to the keyboard and the Type-A end to your computer's USB port.
- Ikhibhodi izobonwa ngokuzenzakalela futhi ilungele ukusetshenziswa.
2.4G Ukuxhuma Okungenantambo
- Locate the 2.4G USB receiver (usually stored in a compartment on the keyboard).
- Xhuma isamukeli se-2.4G USB echwebeni le-USB elitholakalayo kukhompyutha yakho.
- Switch the keyboard to 2.4G mode (refer to the keyboard's function keys or switch for mode selection).
- The keyboard should connect automatically. If not, press the pairing button (if available) or consult the QMK/VIA software for pairing instructions.
Bluetooth 5.0 Connection (Three Channels)
- Shintshela ikhibhodi kumodi ye-Bluetooth.
- Kukhompyutha yakho noma kudivayisi, vula i-Bluetooth bese usesha amadivayisi amasha.
- Select "MMD KM40" (or similar name) from the list of available devices.
- If prompted, enter the pairing code.
- The KM40 supports up to three Bluetooth devices. Use the designated function keys (e.g., Fn + 1, Fn + 2, Fn + 3) to switch between paired devices.
Imiyalelo yokusebenza
1. Key Customization (QMK/VIA)
The MMD KM40 keyboard is fully customizable using QMK/VIA software. This allows you to remap keys, create macros, and configure multiple layers of key functions.

The keyboard supports open-source QMK/VIA for advanced customization.
The keyboard features 44 keys with 10 customizable layers, offering up to 430 actual usable key values. The default key values are for display purposes; actual settings need to be configured by the user.

The 10 customizable layers include settings for regular use, gaming, modeling, editing, color grading, office tasks, tables, drawing, code, and connection/lighting.
Ukuze wenze ngokwezifiso:
- Download the QMK Toolbox or VIA software from the official QMK/VIA webindawo.
- Connect your keyboard via the Type-C cable.
- Follow the software instructions to remap keys, create macros, and manage layers.
2. Lighting Effects
The KM40 features 22 types of lighting effects and 16 million color RGB dazzling lights. Use the designated function keys (e.g., Fn + specific key) to cycle through lighting modes, adjust brightness, and change colors. Refer to the QMK/VIA software for advanced lighting customization.
3. Ukushintsha Okushisayo Okushintshwayo
The keyboard features full-key hot-swappable sockets, allowing you to easily change mechanical switches without soldering. This enables users to customize the typing feel to their preference.
4. Amapulatifomu Ahambisanayo
The MMD KM40 is compatible with Windows and Mac operating systems.
Isondlo
1. Ukuhlanza
- Use a soft, dry cloth to wipe the keyboard surface.
- Ngokungcola okunenkani, kancane dampzu indwangu ngamanzi noma isixazululo esithambile sokuhlanza.
- To clean between keycaps, use compressed air or a small brush.
- Keycaps can be removed for deeper cleaning. Use a keycap puller to avoid damage.
2. Ukunakekelwa Kwesikhiye
The keycaps are made of 1.7mm thick PBT with five-sided dye-sublimation, which is durable and resistant to wear and shine. Avoid using harsh chemicals or abrasive materials that could damage the keycap legends.
Ukuxazulula inkinga
1. Ikhibhodi Ayiphenduli
- Imodi enentambo: Ensure the Type-C cable is securely connected to both the keyboard and the computer. Try a different USB port or cable.
- Imodi engenantambo ye-2.4G: Ensure the 2.4G receiver is plugged in and the keyboard is switched to 2.4G mode. Re-pair if necessary.
- Imodi ye-Bluetooth: Check if Bluetooth is enabled on your device and the keyboard is in Bluetooth mode. Try re-pairing the device. Ensure the keyboard is charged.
2. Keys Not Working
- If individual keys are not working, try removing and re-inserting the switch for that key, as the keyboard is hot-swappable.
- Qinisekisa ukuthi akukho mfucumfucu efakwe ngaphansi kwe-keycap noma iswishi.
- If using custom key mappings, reset to default or check your QMK/VIA configuration.
3. Izinkinga zokushaja
If the keyboard is not charging, ensure you are using a standard computer USB port and not a fast charger. Refer to the charging precautions in the Setup section.
4. Lighting Not Working
- Check if the lighting is turned off or set to minimum brightness.
- Cycle through lighting effects using function keys.
- Verify lighting settings in QMK/VIA software.
Imininingwane

Detailed configuration list for the MMD KM40 keyboard.
| Isici | Incazelo |
|---|---|
| Indaba Eyinhloko | National standard 6063 aluminum, pure CNC precision carving |
| Imibala Etholakalayo | Starry Night Black, Starlight Silver, Pomegranate Red, Military Green, Cloud White, Guifei Pink |
| Inqubo Yobuso | Anodic oxidation, Electrophoresis |
| Keycap | 1.7mm thickened, five-sided high-content PBT dye-sublimation |
| Switch Body (Shaft) | NP Linear Switch (45gf), INK Linear Switch (62gf), INK White Linear Switch (45gf) |
| Iphakheji yomsindo | Poron cotton, IXPE switch pad, PET sound pad, switch seat cotton, bottom cotton, anti-static film |
| Isakhiwo | O-Ring Gasket Structure |
| Amamodi Okuxhumana | Bluetooth 5.0 (three channels), 2.4G Wireless, Type-C Wired |
| Izici | QMK/VIA 44 keys fully customizable |
| Ipuleti Lokumisa | Transparent frosted PC positioning plate |
| PCB | Pure white 1.2mm PCB |
| Okushisayo-okushintshwayo | Full key hot-swappable |
| Ibhethri | 2000mAh |
| Isixazululo seDrayivu | QMK/VIA |
| Ukukhanyisa | 22 types of effects, 16 million color RGB dazzling lights |
| Izesekeli | User Manual, Type-A to Type-C data cable |
| Ubukhulu | Length 235mm * Width 85mm * Height 20-28mm (excluding keycaps) |
| Isisindo | Cishe. 0.62kg |

Force curves for Colorful INK, New Star NP, and INK White Linear switches.

Detailed diagram of the keyboard's O-Ring gasket structure and internal components.
Amathiphu omsebenzisi
- Zama izinhlobo ezahlukene zokushintsha ukuze uthole umuzwa wokuthayipha owuthandayo, ngenxa yomklamo oshintshashintshayo oshisayo.
- Utilize the QMK/VIA software to create custom key layouts for specific applications or games to enhance productivity and gaming performance.
- Thatha i-advantage of the three connection modes to seamlessly switch between multiple devices (e.g., desktop, laptop, tablet).
Iwaranti kanye Nokusekela
For warranty information, technical support, or any product-related inquiries, please contact the seller or the official MMD customer service. Keep your purchase receipt as proof of purchase.

