Compare Yunzii B75 Pro Max vs IF99 Differences Side by Side

This comparison is for buyers deciding between two feature-rich Yunzii keyboards that share similar internals but differ drastically in size and focus. The B75 Pro Max is a compact 75% board with a TFT screen and a dedicated knob, making it ideal for those who value desk space and a more interactive display. The IF99 is a 95% full-size layout with an LCD screen and a magnetic badge, tailored for users who rely on a numpad and prefer a dedicated productivity tool. The decision is tough because both offer QMK/VIA support, an 8000mAh battery, gasket mount construction, and similar switch options, meaning the primary differentiator is layout and form factor.

Model
	84	86	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Available in a 75% layout Comes with a knob Includes a Yes, TFT display Weighs about 993 g Sized at 42 x 334 x 144 mm	Available in a 95% layout Includes a Yes display Compatible with both Mac and Windows Has built-in sound dampening Runs at a 1000 Hz polling rate Weighs about 1238.5 g Sized at 46 x 385 x 143 mm
Score	Scores Performance: 83.4 Build Quality: 80 Productivity: 73.6 Customizability: 89.5 Portability: 90.3	Scores Performance: 81.7 Build Quality: 80.2 Productivity: 89.2 Customizability: 89.8 Portability: 63
Name	Name Yunzii B75 Pro Max	Name Yunzii IF99
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options Linear	Switch Options Linear
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 95%
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 8000 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 -
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 42 x 334 x 144 mm	Dimensions 46 x 385 x 143 mm
Weight	Weight 993g	Weight 1238.5g

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Pros and Trade-offs

The decision comes down to layout: the B75 Pro Max suits gamers, programmers, and travellers who prioritise desk space and portability, while the IF99 is the better pick for office workers or anyone who needs a numpad for daily data tasks. Both keyboards deliver strong build quality, QMK/VIA support, and long battery life at similar price points. If you can live without a numpad, the B75 Pro Max offers more versatility in a smaller package. Otherwise, the IF99 is the dedicated productivity machine.

Yunzii B75 Pro Max

+Compact 75% layout with a dedicated knob saves desk space and provides easy volume control.
+Features a customizable TFT screen that can display GIFs, photos, battery level, and status indicators per the vendor.
+Weighs only 993g, making it the more portable option for travel or LAN events.
+Offers three switch options from the vendor: YUNZII Milk V2, Cocoa Cream V2, and Candy Linear switches.
+Includes a five-layer cushioning system described by the vendor to eliminate cavity noise for a creamy sound profile.

−Lacks a numpad, which may slow down data entry and spreadsheet work.
−Does not have listed Mac/Win support in the metadata, though it works with multiple operating systems per the vendor.
−Screen aspect ratio is 160x96 pixels, which is smaller and lower resolution than some users may expect.

Yunzii IF99

+95% full-size layout includes a 95-key configuration with a numpad for efficient data entry.
+Features a customizable LCD screen and a magnetic metal badge that hides the 2.4GHz receiver per the vendor.
+Listed Mac/Win support and a 1000 Hz polling rate make it suitable for both office and gaming use.
+Includes sound dampening layers and a gasket mount design for reduced typing noise per the vendor.

−Heavier at 1238.5g and larger, making it less convenient for travel or small desks.
−Portability score of 63 out of 100 is notably low, reflecting its bulkier size and weight.
−Lacks a dedicated knob, so volume or media control requires key combinations or software setup.

Which Keyboard Is Better for Your Needs?

The B75 Pro Max wins for gaming, programming, and travel thanks to its compact 75% layout, lighter weight, and dedicated knob. The IF99 takes office work with its 95% full-size layout and numpad for data entry. For modding and content creation, the two keyboards are effectively tied, as both share the same hot-swappable design, gasket mount, QMK/VIA support, and a customizable screen. Your choice will largely depend on whether you value desk space and portability over a built-in numpad.

GamingYunzii B75 Pro Max

•Compact 75% layout leaves more room for mouse movement on the desk.
•Includes a dedicated knob (default volume) for quick in-game audio adjustments.
•Lighter weight at 993g makes it easier to take to LAN parties or tournaments.

OfficeYunzii IF99

•95% full-size layout includes a numpad for heavy data entry.
•Productivity score of 89.2 out of 100 reflects its office-focused design.
•Listed Mac/Win support ensures easy switching between work computers.

ProgrammingYunzii B75 Pro Max

•Compact 75% layout keeps navigation keys close without stretching for the mouse.
•Dedicated knob can be customised via QMK/VIA for actions like code navigation or volume.
•Lighter weight and smaller footprint reduce fatigue during long typing sessions.

TravelYunzii B75 Pro Max

•Weighs 993g, which is 245g lighter than the IF99 for easier transport.
•Smaller dimensions (334 x 144 mm vs 385 x 143 mm) fit better in bags.
•Portability score of 90.3 out of 100 is significantly higher than the IF99.

ModdingTie

•Both boards feature a gasket mount structure and full-key hot-swappable sockets for 3-pin and 5-pin switches.
•Both support QMK/VIA open-source firmware for keymap customisation and macros.
•The IF99 has listed sound dampening layers, while the B75 Pro Max has a five-layer cushioning system per the vendor.

Content CreationTie

•Both feature a customizable screen (TFT on B75, LCD on IF99) for displaying GIFs, photos, or status info.
•Both offer tri-mode connectivity (Bluetooth, 2.4 GHz, wired) for switching between devices.
•Each provides an 8000mAh battery for extended wireless runtime during editing sessions.