What mounting options does the Key Boy Advance 50 offer?

The Key Boy Advance 50 supports both top mount and oring top mount styles, allowing you to customize the typing feel and sound to your preference.

Can I use wireless connectivity with this keyboard?

Yes, if you choose the hotswap PCB with 2.4GHz/Bluetooth/Wired tri-mode, the keyboard supports wireless connectivity, giving you versatile options for usage.

What materials are available for the keyboard case?

The keyboard kit comes with options for an aluminum case with anodized or coated finishes, as well as a PC (polycarbonate) case available in various colors.

Does this keyboard support hot-swappable switches?

Yes, there is a PCB option that supports hot-swappable switches, allowing you to easily change switches without soldering.

What are the spacebar layout options on the Key Boy Advance 50?

You can choose between two main spacebar layouts: Layout 1, which supports either a single 6u spacebar or split 3u+3u spacebars, and Layout 2, which features a split 2.25u+1u+2.75u spacebar configuration.

Is the keyboard compatible with VIAL or other programming software?

Yes, the Key Boy Advance 50 supports VIAL, enabling advanced key remapping and customization with an easy-to-use interface.

What is the typing angle and overall size of the keyboard?

The keyboard has a comfortable typing angle of 7 degrees. Its approximate dimensions are 251mm in length, 119mm in width, and 33mm in height.

How heavy is the fully assembled aluminum version?

The fully assembled aluminum build weighs approximately 1.4 kilograms, providing a solid and premium feel on your desk.

Are batteries included for wireless use?

Yes, the tri-mode PCB option includes a 1000mAh battery to support wireless functionality, so you won’t need to purchase one separately.

What accessories come with the keyboard kit?

The kit includes a top case, aluminum plate, PCB(s), side (shoulder) buttons, battery compartment cover, USB-C daughter board, various cables, screws, o-rings, stabilizers, poron and PET sheets for the spacebar, feet, and a carrying case.

PromoType Key Boy Advance 50 KBA50 Starting at $274.99

Name: PromoType Key Boy Advance 50 KBA50
Brand: PromoType
SKU: pre-order-promotype-key-boy-advance-50-kba50-keyboard-kit

Vendor	Location	Coupon Code	In Stock	Price (USD)	Link*
PromoType Key Boy Advance 50 KBA50
	Global	-	Check vendor	Check vendor	Visit shop
[Pre Order] PromoType Key Boy Advance 50 KBA50 Keyboard Kit
	Shipping to US			$275	Visit Shop

Vendor

Location

Coupon Code

In Stock

Price (USD)

Link*

PromoType Key Boy Advance 50 KBA50

Global

Check vendor

Visit shop

[Pre Order] PromoType Key Boy Advance 50 KBA50 Keyboard Kit

Shipping to US

$275

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Compare PromoType Key Boy Advance 50 KBA50 vs KBDFans Tofu60 V2 vs Qwertykeys QK65 Mk3 Specification

Compare similar keyboards side by side, or use the comparison table to compare all keyboards!

Model	PromoType Key Boy Advance 50 KBA50	KBDFans Tofu60 V2	Qwertykeys QK65 Mk3
	64	90	84
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)	4.3 stars (4 reviews)
Purchase Options
Main differences	Released in 2026 Available in a 50% layout Built with the ANSI layout standard Offers Split Spacebar ergonomics Supports VIAL configuration Equipped with a 1000 mAh battery Sized at 33 x 251 x 119 mm Made with a Aluminum, Polycarbonate case	Released in 2023 Available in a 60% layout Built with the ANSI, ISO, JIS, ISO-UK, Workman layout standard Supports QMK firmware Includes screw-in stabilizers Supports Wired, Wired only connectivity Sized at 33 x 116 x 295 mm Made with a Aluminum, Plastic, Steel, Metal, Wood, ABS, PBT, POM, Polycarbonate, Acrylic, Brass, Silicone, Carbon Fiber, Copper, Resin, Ceramic, Magnesium case	Released in 2025 Has Linear switch options Available in a 65% layout Built with the ANSI, ISO layout standard Comes with a knob Includes a Yes, LED display Compatible with both Mac and Windows Uses a Gasket Mount mounting style Equipped with a 3100 mAh battery Weighs about 1471 g Sized at 21 x 345 x 121 mm Made with a Aluminum case Offers Yes, Rgb RGB lighting
Score	Scores Performance: 50.8 Build Quality: 68.4 Productivity: 57 Customizability: 67.1 Portability: 84.6	Scores Performance: 41.3 Build Quality: 100 Productivity: 82 Customizability: 84.6 Portability: 70.9	Scores Performance: 66.9 Build Quality: 78.2 Productivity: 84.6 Customizability: 87.4 Portability: 88.8
Name	Name PromoType Key Boy Advance 50 KBA50	Name KBDFans Tofu60 V2	Name Qwertykeys QK65 Mk3
Release year	Release year 2026	Release year 2023	Release year 2025
Switch Options	Switch Options -	Switch Options -	Switch Options Linear
Profile	Profile Normal Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 50%	Layout Size 60%	Layout Size 65%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI, ISO, JIS, ISO-UK, Workman	Layout Standard ANSI, ISO
Layout Ergonomics	Layout Ergonomics Split Spacebar	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support	Display Support LED
Mac/Win Support	Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Wired, Wired only	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate -	Polling Rate -
Battery capacity	Battery capacity 1000 mAh	Battery capacity -	Battery capacity 3100 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Top Mount	Mount Style Top Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight	Backlight Rgb
Case Colors	Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum, Polycarbonate	Case Material Aluminum, Plastic, Steel, Metal, Wood, ABS, PBT, POM, Polycarbonate, Acrylic, Brass, Silicone, Carbon Fiber, Copper, Resin, Ceramic, Magnesium	Case Material Aluminum
Keycaps Material	Keycaps Material -	Keycaps Material -	Keycaps Material -
Dimensions	Dimensions 33 x 251 x 119 mm	Dimensions 33 x 116 x 295 mm	Dimensions 21 x 345 x 121 mm
Weight	Weight 1400g	Weight 1400g	Weight 1471g

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Product Description

The PromoType Key Boy Advance 50 KBA50 is a 50% keyboard kit designed for hobbyists who want a compact, customizable build. It suits users comfortable with assembling their keyboard and choosing between soldered or hot-swappable PCBs. Its multiple connectivity options, including wired and wireless tri-mode, make it adaptable for varied setups. This board is good if you want a small footprint and flexible spacebar layouts but may be less ideal if you prefer a fully prebuilt or simpler keyboard.

Key Features

Supports soldered or hot-swap PCBs, allowing easy switch changes without soldering if preferred.
Tri-mode connectivity (wired, Bluetooth, 2.4GHz wireless) available on select PCB versions, offering versatile connection options.
Two spacebar layout options, including a split spacebar, provide typing customization for different preferences.
Includes a 1000mAh battery for wireless use, enabling portability without constant power connection.

Build Quality

Available in aluminum or polycarbonate cases, balancing durability and weight.
Uses top or oring top mount, which affects typing feel by cushioning keypresses through rubber or gasket elements.
Comes with a carrying case and accessories like LED boards and diffuser, supporting a clean, assembled build.
Weight around 1.4 kg for aluminum, providing a stable typing surface.

Typing Experience

Mounting style and included porons (soft foam) help reduce noise and vibration for a quieter typing session.
Supports VIAL firmware, allowing extensive key remapping and macro programming for personalized layouts.

Connectivity

Wired connection via USB-C ensures reliable, low-latency use.
Wireless tri-mode option adds flexibility for users who want a clutter-free desk or mobile use.
Battery life and wireless performance details are unknown.

Trade-offs

Requires assembly and soldering skills if choosing the solder-only PCB, which may not suit beginners.
Wireless features only available on specific PCB versions, limiting options if you want all features combined.
Lacks prebuilt option, so users must source switches and keycaps separately.

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