
YUNZII B75 PRO Wireless Mechanical Keyboard,75% Layout with Knob,Hot Swap Gasket Structure,Creamy Pre-lubed Switches,RGB Backlit,Bluetooth/Type-C/2.4G for Win/Mac (White, Milk Switch)
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AI Verdict
A 1.98-pound plastic 75% layout keyboard with tri-mode connectivity and hot-swappable switches, suited for users prioritizing a 'creamy' typing sound and feel on a budget.
This 1.98-pound plastic keyboard with a 75% layout and tri-mode connectivity offers a gasket-mounted typing experience with pre-lubed switches, which is appealing for its sound profile. However, potential software instability and limited Mac-specific features make it a better fit for Windows users prioritizing typing feel and wireless flexibility over advanced software control or Mac integration.
If software control and Mac compatibility are critical, look for keyboards explicitly stating QMK/VIA support and dedicated Mac layouts.
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Pros
- Tri-mode connectivity (Bluetooth, 2.4GHz, Type-C) offers broad device compatibility.
- Gasket mount with five-layer padding provides a 'creamy' typing sound and feel.
- Hot-swappable sockets are compatible with 3-pin/5-pin switches for customization.
- 4000mAh battery provides extended wireless usage, reportedly up to two weeks.
- Programmable RGB with south-facing LEDs and over 20 built-in modes for visual customization.
- Multimedia control knob allows quick adjustment of volume and backlighting.
Cons
- Bluetooth connectivity does not support multi-device switching without using the dongle or cable.
- Software can be problematic, with reports of malfunctions, delayed inputs, and dead keyboards after use.
- Wireless sleep-to-wake is slow, and the default sleep time is quick, requiring software adjustment.
- Keycap legends and function row layout can be quirky, with an 'Insert' button instead of 'Home'.
- Lacks Mac-dedicated keycaps or an OS switch, potentially making it 'not great for Mac OS' for primary Mac users.
- RGB backlighting cannot be customized per-key, only through preset patterns.
Dimension Scores
The gasket mount with five-layer padding and pre-lubed linear switches provides a 'creamy' sound and a 'bouncy yet firm' typing experience.
Offers tri-mode connectivity including 2.4GHz with 1000Hz polling rate for gaming, but Bluetooth lacks multi-device switching and wireless sleep-to-wake is slow.
Features south-facing RGB LEDs with over 20 built-in modes and programmable software, though individual key color customization is not supported.
Constructed with a plastic case, it is described as 'very sturdy' by users, with only slight flex reported.
Best For
- Gamers needing low-latency 2.4GHz wireless with 1000Hz polling rate.
- Users seeking a compact 75% layout with a dedicated volume knob.
- Enthusiasts wanting to experiment with different 3-pin/5-pin switches due to hot-swappable sockets.
- Individuals prioritizing a 'creamy' or 'clacky' typing sound profile from a gasket-mounted board.
Not Recommended For
- Primary Mac users who require Mac-specific keycaps or seamless OS switching.
- Users who need per-key RGB customization.
- Individuals sensitive to potential software issues or who prefer QMK/VIA support.
Watch Out For
- Bluetooth connectivity does not allow switching between multiple devices without using the 2.4GHz dongle or a wired connection.
- Software has been reported to cause keyboard malfunctions, including extreme input delays and complete failure, with some users unable to revive their devices.
- The wireless sleep mode has a slow wake-up time and a quick default sleep, which can be inconvenient and requires software adjustment.
- The key layout includes an 'Insert' button in the navigation cluster where a 'Home' button is typically expected, which can be confusing for some users.
- Official software download links have been reported as dead by some users.
Full Specifications
| ASIN | B0FNMT7LDN |
| Brand | YUNZII |
| Color | White |
| Style | Gaming |
| Material | Plastic |
| Batteries | 1 D batteries required. (included) |
| Item Weight | 1.98 pounds |
| Manufacturer | YUNZII |
| Special Feature | Backlit, Hot-Swappable, Programmable Keys |
| Item model number | B75 PRO |
| Compatible Devices | Laptop, PC, Smartphone |
| Package Dimensions | 15.71 x 6.61 x 2.36 inches |
| Keyboard Description | Hot Swappable Mechanical Keyboard |
| Connectivity Technology | Bluetooth/Type-C/2.4GHz Wireless |
| Recommended Uses For Product | Everyday Use |
| Keyboard backlighting color support | RGB |
What Buyers Say
Users frequently highlight the keyboard's 'creamy' or 'clacky' sound profile and comfortable typing experience, often attributing it to the gasket mount and pre-lubed switches. However, the software is a recurring point of frustration, with reports of it causing keyboard malfunctions or even rendering devices unusable. The wireless connectivity is appreciated for its flexibility, but the slow wake-up from sleep and lack of multi-device Bluetooth switching are noted drawbacks.
“Dude, this keyboard sounds so good, like, actually creamy, but the software totally bricked my last one, so I'm kinda nervous about messing with it again.”
Common Praise
- The gasket mount design contributes to a satisfying 'creamy' or 'clacky' typing sound.
- Tri-mode connectivity (Bluetooth, 2.4GHz, Type-C) offers broad compatibility across devices.
- The hot-swappable sockets allow for easy switch customization with 3-pin or 5-pin switches.
- The 75% layout with a dedicated multimedia knob is practical for volume and backlight control.
- The keyboard feels 'sturdy' and 'clean and crisp' to type on.
- The 4000mAh battery provides extended wireless usage, reportedly up to two weeks.
Common Complaints
- The accompanying software has been reported to cause keyboard malfunctions, including severe input delays and complete device failure.
- Bluetooth does not support switching between multiple paired devices, requiring the dongle or cable for other connections.
- Wireless sleep mode has a slow wake-up time and a quick default sleep, which can be inconvenient.
- The key layout includes an 'Insert' button instead of the more common 'Home' button in the navigation cluster.
- Mac users might find the lack of dedicated keycaps or an OS switch less ideal.
- RGB backlighting cannot be customized on a per-key basis, only through preset patterns.
Ownership Tips
- The default wireless sleep timer is too short and needs adjustment via software to prevent frequent disconnections.
- The 'creamy' sound profile is noticeable and a key differentiator, even for those skeptical of marketing terms.
- The plastic case, while sturdy, might feel less premium than metal alternatives in the same price band.
- The knob is genuinely useful for quick volume adjustments, becoming a habit quickly.
- Finding working software download links can be a challenge, with some official links being dead.
Frequently Asked Questions
Can I change the switches on this keyboard?
Yes, it's a hot-swappable mechanical keyboard compatible with both 3-pin and 5-pin switches, allowing you to customize the typing feel.
Does this keyboard work with Mac?
It is compatible with MacOS, but it doesn't have Mac-dedicated keycaps or an OS switch, which might be less ideal for primary Mac users.
How long does the battery last?
The keyboard has a 4000mAh battery, which some users report can last around two weeks with typical use.
Can I customize the RGB lighting for individual keys?
No, while it has over 20 built-in RGB backlight modes and programmable software, you cannot customize the color for each individual key.
What kind of switches does it come with?
It comes with creamy pre-lubed linear switches, specifically mentioned as Yunzii Cocoa Cream V2 linear switches in some reviews.
Is the software necessary?
The software allows for key remapping, macro settings, RGB customization, and adjusting wireless sleep timers, but some users have reported issues with it.
Buying Guide
When you're looking at mechanical keyboards, don't just focus on the looks. Think about how you'll connect it – wired, Bluetooth, or a 2.4GHz dongle. The typing feel is huge; switches come in linear (smooth), tactile (a bump), or clicky (a bump and a click), and the mounting style, like gasket mount, can really change the sound and feel. Also, consider the layout; a 75% like this one gives you most keys without taking up too much desk space.
Gasket Mount Structure
This means the keyboard's internal plate is sandwiched between foam or rubber, reducing vibrations and creating a softer, more muted sound profile, often described as 'creamy' or 'thocky,' instead of a harsh clack.
Hot Swappable
This lets you easily pull out and replace the switches without soldering, so you can try different switch types (linear, tactile, clicky) to find your perfect typing feel or replace a broken switch. It's like changing tires on a car without needing a mechanic.
Tri-mode Connectivity (Bluetooth/Type-C/2.4G)
This gives you three ways to connect: a cable for zero latency, Bluetooth for wireless convenience with multiple devices (though not simultaneously switching here), and a 2.4GHz dongle for a more stable, low-latency wireless connection, especially important for gaming.
75% Layout with Knob
This compact layout keeps most essential keys, including function keys and arrow keys, but removes the number pad, saving desk space. The knob is a handy physical control for things like volume or backlighting, which is often faster than software controls.
Alternatives
If you need seamless multi-device Bluetooth switching or robust, open-source software for deep customization, look for keyboards specifically mentioning QMK/VIA support and advanced Bluetooth features.



