MMD KM21 Ultra vs Mxrskey WINGMAN XII
Choose the MMD KM21 Ultra for wireless connectivity and QMK/VIA customization, or the WINGMAN XII if its wired USB pass-through and aluminum plate suit your setup.
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Which one should you get?
Get the
MMD KM21 Ultra
QMK
Build quality in the top 15% of Numpad boards under $100.
- Tri-mode connectivity includes USB-C wired, 2.4 GHz, and Bluetooth.
- QMK and VIA support is listed, with the vendor describing key and knob customization.
- Four clickable rotary knobs add controls alongside the numpad keys.
Get the
Mxrskey WINGMAN XII
Build quality in the bottom 45% of Numpad boards under $150.
- Aluminum case and aluminum plate are listed in the product specifications.
- Hot-swappable keys and knob support are included.
- The product listing specifies USB pass-through, with the vendor describing two USB 2.0 expansion ports.
For a numpad that can move between wired and wireless setups and offers documented QMK/VIA customization, choose the MMD KM21 Ultra. Consider the WINGMAN XII if you specifically want its aluminum plate and USB pass-through and are comfortable with a wired-only connection. Both are hot-swappable, so that feature alone does not decide the comparison.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
MMD KM21 Ultra
Mxrskey WINGMAN XII
Connection
Bluetooth, 2.4 GHz, Wired
Wired
Wireless for several devices and wired for lower latency
QMK
Yes
No
The deep option when you want to remap every key
VIA
Yes
No
GUI remapping without compiling firmware
Sound dampening
Yes
No
Plate material
Plastic
Aluminum
- MMD KM21 Ultra
- Mxrskey WINGMAN XII
- Performance
- 6662
- Build quality
- 8161
- Productivity
- 8954
- Customizability
- 8964
- Portability
- 8571
- Layout size: Numpad
- Hot-swappable
- Case material: Aluminum
- Knob
What will you mostly use it for?
The KM21 Ultra leads across these use cases because it combines multiple connection modes with QMK/VIA and four clickable knobs. Its strongest fit is a configurable desk companion, particularly for creative controls and wireless setups. The WINGMAN XII remains a wired alternative with an aluminum plate and USB pass-through, but those features do not outweigh the KM21 Ultra's broader documented flexibility in these categories.
Pick the MMD KM21 Ultra
- The KM21 Ultra offers wired, 2.4 GHz, and Bluetooth connectivity, while the WINGMAN XII is wired-only.
- The KM21 Ultra supports QMK and VIA for key and knob customization.
MMD KM21 Ultra vs Mxrskey WINGMAN XII specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 21 specs differ
MMD KM21 Ultra
Mxrskey WINGMAN XII
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
USB passthrough
USB-C
Case material
Plate material
Keycaps
Backlight
QMK
VIA
Mac & Windows
Released
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MMD KM21 Ultra vs Mxrskey WINGMAN XII: your questions
Yes. Its listed connectivity includes Bluetooth, 2.4 GHz wireless, and wired USB-C, and it has a 980 mAh battery.
No wireless connection is listed for the WINGMAN XII, which is specified as wired-only. Its vendor description also describes a Type-C wired connection.
Yes, QMK and VIA support are listed for the KM21 Ultra. The vendor says its keys and four clickable knobs can be configured.
The WINGMAN XII vendor listing says all keys support customization and programming. It does not identify QMK or VIA support.
The KM21 Ultra has four clickable rotary knobs. The WINGMAN XII is described as having one knob.
Both products list hot-swappable support. The KM21 Ultra vendor description also identifies its preinstalled switches as MMD Cream linear switches.
Its case is listed as aluminum, and the vendor describes it as CNC-machined. The vendor also names PORON, IXPE, PET plate material, and bottom-foam padding as damping components.
Yes, its specifications list an aluminum plate and an aluminum case. The vendor describes the plate as an aluminum-alloy CNC integrated positioning plate.
Yes, USB pass-through is listed as an extra feature. The vendor description specifies two USB 2.0 expansion ports.
The KM21 Ultra has four clickable knobs, and its vendor describes uses including timeline scrubbing, zoom, and volume control. VIA support is listed for assigning functions to its keys and knobs.
Both models list RGB. The WINGMAN XII vendor also describes backlight adjustment and music rhythm effects.
The KM21 Ultra is the clear fit for a wireless setup because it offers Bluetooth and 2.4 GHz connectivity, as well as a 980 mAh battery. The WINGMAN XII is listed as wired-only.
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