Keychron K2 Max vs Yunzii B75 ProQMK or Knob?
Choose the K2 Max for QMK and VIA customization, or the B75 Pro if you want a multifunction knob and gasket mount.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
4.5 (2)4.5 · 2 reviews
from$94at Keychron
No reviews
from$79at Yunzii
Which one should you get?
Get the
Keychron K2 Max
Build quality in the top 10% of 75% boards under $100.
- QMK and VIA support, with Keychron Launcher described for key remapping, macros, and shortcuts.
- Steel plate, aluminum and ABS case options, and IXPE, PET, and EPDM acoustic foam layers are listed or described.
- Hot-swappable version supports 3-pin and 5-pin MX-style switches, according to Keychron.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Yunzii B75 Pro
polling rate
Build quality in the top 35% of 75% boards under $100.
- Gasket mount with five-layer padding, described as providing a solid typing feel and noise cancellation.
- Multifunction knob adjusts volume and backlight effects, with a long press switching between gaming and office modes.
- 4000 Hz polling rate, 4000mAh battery, and Bluetooth, 2.4 GHz, and wired connectivity.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- Missing ISO-DE, ISO-UK, ISO-Nordic. The other board is sold in those layouts.
Choose the Keychron K2 Max if QMK and VIA support, acoustic foam layers, or a broader set of listed regional ISO layouts are priorities. Pick the Yunzii B75 Pro if you prefer its gasket mount, multifunction knob, or higher stated polling rate. Both provide hot-swappable switches and three connection modes, so your preferred customization approach and controls should decide it.
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.
Keychron K2 Max
Yunzii B75 Pro
Max polling rate
1,000 Hz
4,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS, Aluminum
Plastic
Mount style
PCB Mount, Plate Mount
Gasket Mount
Knob
No
Yes
Weight
940 g
937 g
Heavier boards stay planted and lighter ones travel
- Keychron K2 Max
- Yunzii B75 Pro
- Performance
- 8185
- Build quality
- 8572
- Productivity
- 9591
- Customizability
- 9178
- Portability
- 7980
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Battery: 4,000 mAh
- Switch options: Clicky, Linear, Tactile
- Sound dampening
What will you mostly use it for?
The B75 Pro has an edge for buyers who value its higher stated polling rate or want a physical knob for daily controls. The K2 Max is the more customization-focused choice, especially for QMK and VIA users or shoppers seeking the listed regional ISO layouts. Travel is a close call: the listed weights are nearly identical, while the K2 Max has smaller listed length and width. For content creation, the choice depends on whether a knob or programmable key layouts better fit your workflow.
Pick the Yunzii B75 Pro
- The B75 Pro lists a 4000 Hz polling rate, compared with 1000 Hz for the K2 Max.
- Both keyboards support 2.4 GHz wireless, wired connections, hot-swappable switches, and N-key rollover.
Keychron K2 Max vs Yunzii B75 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 27 specs differ
Keychron K2 Max
Yunzii B75 Pro
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
ISO layouts by store
Which stores sell ISO-DE, UK, and the other regional layouts.
Keychron K2 Max
Keychron
ISO-DE, ISO-UK, ISO-Nordic, ISO-SW
In stockShips to you
Keychron (DE)
ISO-DE, ISO-UK, ISO-SW
Out of stockDoes not ship to you
Yunzii B75 Pro
Yunzii
ISO
In stockShips to you
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
Keychron K2 Max vs Yunzii B75 Pro: your questions
The K2 Max supports QMK and VIA and uses a steel plate, while the B75 Pro has a gasket mount and multifunction knob. Both are 75% wireless keyboards with hot-swappable switches.
The B75 Pro lists a 4000 Hz polling rate, while the K2 Max lists 1000 Hz. The listed rates alone do not establish how either keyboard will feel in every setup.
The K2 Max is the more direct fit for users who want QMK and VIA support. Keychron also describes Launcher features for remapping, macros, and shortcuts, while the B75 Pro product description mentions programmable keys and macros through Windows software.
Yes, the B75 Pro has a multifunction knob. Its product description says it adjusts volume and backlight effects, and a long press switches between gaming and office modes.
Both are listed as hot-swappable. Keychron says the hot-swappable K2 Max supports many 3-pin and 5-pin MX-style switches, while the B75 Pro description specifies full-key sockets for 3-pin or 5-pin switches.
The Yunzii B75 Pro is listed as a gasket-mount keyboard. The K2 Max is listed with PCB-mount and plate-mount options instead.
Yes, both list Bluetooth, 2.4 GHz wireless, and wired connectivity. Both also list USB-C.
The K2 Max is listed in ISO-DE, ISO-UK, ISO-Nordic, and ISO-SW layouts, as well as ISO and ANSI. The B75 Pro lists ISO, ANSI, and Dvorak, but not ISO-DE, ISO-UK, or ISO-Nordic.
Both use south-facing LEDs, and both list the same compatibility caution: shine-through legends stay dark, and some sculpted keycaps can clip the LED. Keychron also describes the K2 Max as avoiding interference with Cherry-profile alternative keycaps, which is a different consideration from shine-through legends.
The K2 Max has smaller listed length and width than the B75 Pro, though its listed dimensions are similar in height. Their listed weights are close, and both have 4000mAh batteries and wireless connection options.
The K2 Max is listed with PBT keycaps, and Keychron describes them as double-shot OSA-profile caps. The B75 Pro is listed with double-shot PBT Cherry-profile keycaps.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.