Compare Yunzii B75 Pro Max vs C75 Differences Side by Side

This comparison is for buyers deciding between two feature-rich 75% keyboards from Yunzii. The choice is difficult because both offer tri-mode connectivity, gasket mounts, and hot-swappable PCBs, but they diverge significantly in their premium features. The B75 Pro Max invests in a customizable TFT screen and open-source firmware, while the C75 opts for an aluminum case and a distinct visual theme. Your priority between software flexibility and material construction will determine the winner.

Model
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Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Has Linear switch options Comes with a knob Includes a Yes, TFT display Supports QMK firmware Supports VIA configuration Equipped with a 8000 mAh battery Weighs about 993 g Sized at 42 x 334 x 144 mm	Has Linear, Clicky switch options Includes a No display Compatible with both Mac and Windows Runs at a 1000 Hz polling rate Equipped with a 5500 mAh battery Weighs about 1008 g Sized at 44 x 336 x 162 mm Made with a Aluminum case
Score	Scores Performance: 83.4 Build Quality: 79.9 Productivity: 73.6 Customizability: 89.4 Portability: 90.3	Scores Performance: 58.2 Build Quality: 55.2 Productivity: 66.1 Customizability: 60.5 Portability: 91.8
Name	Name Yunzii B75 Pro Max	Name Yunzii C75
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options Linear	Switch Options Linear, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support TFT	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 1000 Hz
Battery capacity	Battery capacity 8000 mAh	Battery capacity 5500 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material -	Case Material Aluminum
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 42 x 334 x 144 mm	Dimensions 44 x 336 x 162 mm
Weight	Weight 993g	Weight 1008g

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Pros and Trade-offs

Your decision hinges on what you value more: customization potential or material quality. The Yunzii B75 Pro Max is the tool for tinkerers and power users who will utilize its screen, knob, and QMK/VIA firmware. The Yunzii C75 is the better pick if you prefer a keyboard with a sturdier aluminum build and a cohesive, cute aesthetic right out of the box, with simpler software.

Yunzii B75 Pro Max

+Features a customizable TFT screen for status info, GIFs, or photos.
+Supports QMK and VIA open-source firmware for deep key remapping and macros.
+Includes a programmable multi-function knob (default volume).
+Larger 8000mAh battery capacity for extended wireless use.
+Vendor description details a five-layer cushioning system for sound dampening.

−Case material is not specified as aluminum, suggesting a plastic construction.
−The screen may add complexity for users who prefer a simpler interface.
−Uses double-shot PBT keycaps, while the C75 uses dye-sublimated PBT with a different profile.

Yunzii C75

+Constructed with an aluminum case for a more premium feel.
+Offers a wider range of aesthetic color options with themed 'Cake Meow' designs.
+Vendor description confirms Bluetooth 5.0 connectivity.
+Includes side-lighting and a 'smiley light' for additional RGB effects.
+Explicitly lists Mac/Win support in its specifications.

−Lacks a screen and does not support QMK/VIA firmware.
−Smaller 5500mAh battery compared to the B75 Pro Max.
−Customization is limited to Windows software and an online website, per the vendor.

Which Keyboard Is Better for Your Needs?

The B75 Pro Max is the clear choice for users who prioritize software customization, whether for programming, gaming, or content creation, thanks to its QMK/VIA support and programmable screen. The C75 matches it for general office and travel use, offering a similar wireless experience and explicit Mac/Windows support. For modders, the B75 Pro Max provides a stronger foundation with its open-source firmware and described internal foam layers.

GamingYunzii B75 Pro Max

•The B75 Pro Max lists a 1000 Hz polling rate in its specifications.
•Its larger 8000mAh battery supports longer wireless gaming sessions.
•N-key rollover is confirmed for both, but the B75 Pro Max's screen can display system status.

OfficeTie

•Both support tri-mode wireless (Bluetooth, 2.4GHz, wired) for multi-device use.
•Both have a compact 75% layout to save desk space.
•The C75's vendor description explicitly mentions support for Windows and macOS.
•The B75 Pro Max's screen can show date, time, and battery level for quick reference.

ProgrammingYunzii B75 Pro Max

•The B75 Pro Max supports QMK and VIA firmware for extensive key remapping and macro creation.
•Its programmable knob, noted in the vendor description, can be set for scrolling or other functions.
•The TFT screen can be customized to show system information or GIFs.

TravelTie

•They have nearly identical weights (993g vs 1008g) and similar 75% footprints.
•Both include large batteries (8000mAh and 5500mAh) for extended cordless use.
•Tri-mode connectivity allows for flexible connection to laptops or tablets.

ModdingYunzii B75 Pro Max

•The B75 Pro Max explicitly supports QMK/VIA open-source firmware for deep software customization.
•Both are hot-swappable for 3-pin and 5-pin switches.
•The B75 Pro Max's vendor description mentions a five-layer cushioning system and internal noise-dampening for acoustic mods.

Content CreationYunzii B75 Pro Max

•The programmable knob on the B75 Pro Max can be mapped to timeline scrubbing or brush size adjustments.
•QMK/VIA support allows for creating complex macros for editing software.
•The customizable screen can display project timers or reference images.