Guide to the Best Hot Swap Barebone Keyboard Kits

Building a custom mechanical keyboard no longer requires soldering irons or extensive electrical knowledge. Hot swap barebone keyboard kits provide the foundation—housing the case, printed circuit board (PCB), mounting plate, and internal dampening—allowing you to drop in your favorite mechanical switches and keycaps in minutes. Because barebone kits isolate the core hardware, they offer complete control over your keyboard's acoustics, switch feel, and visual aesthetic.

Below, we examine five verified barebone keyboard kits covering various layout sizes, construction materials, and firmware capabilities. Note: Listed prices reflect global USD reference rates at the time of publication and are subject to change over time.

Key Factors to Consider When Selecting a Barebone Kit

• Form Factor and Layout: Layout dictates desktop footprint and functionality. A compact 65% layout (such as 68 keys) saves desk space while retaining arrow keys. An 80% Tenkeyless (TKL / 87 keys) preserves dedicated navigation and function rows. For users needing numeric entry, 98% (100 keys) and full-size (108 keys) configurations balance data entry speed with desk coverage.
• Mounting Architecture: Gasket-mount designs suspend the plate within the case using flexible gaskets. This decouples the typing surface from rigid anchor points, reducing harsh bottom-out impact and delivering a softer, more consistent acoustic profile.
• Connectivity Options: Tri-mode (three-mode) connectivity offers wired USB-C, 2.4 GHz wireless, and Bluetooth pairing, making it easy to switch between desktop rigs, laptops, and mobile devices.
• Lighting and Firmware: South-facing switches prevent interference with Cherry-profile keycaps and ensure light diffuses toward the typist. Open-source firmware support like QMK and VIA allows for deep key remapping, layer switching, and custom macro creation directly in your browser.

Detailed Breakdown of Verified Barebone Kits

1. MXRSKEY SCC80 Full Aluminum Mechanical Keyboard Kit

The MXRSKEY SCC80 is designed for builders seeking high-end structural heft and refined mounting. Built with a full aluminum chassis, this 80% TKL barebone kit integrates a quick-release gasket system that simplifies assembly and switch modification. Its tri-mode wireless setup provides flexible connectivity across Bluetooth and 2.4 GHz wireless alongside standard wired USB-C.

• Layout: 80% Tenkeyless (TKL)
• Construction: Full Aluminum body with Quick-Release Gasket Mount
• Connectivity: Tri-mode Wireless (Bluetooth / 2.4G / Wired)
• Reference Price: ~$189.76
• Best For: Enthusiasts who prioritize heavy metal construction, acoustic density, and easy disassembly for switch modding.

2. GMK108 Three-Mode RGB Gasket-Mount DIY Kit

The GMK108 caters to users who need a complete full-size layout without sacrificing modern enthusiast standards. It features gasket mounting, south-facing RGB hot-swap sockets (ideal for low-profile and Cherry-profile keycaps), and full QMK/VIA firmware support for limitless remapping. With three-mode wireless capability, it bridges the gap between traditional productivity setups and high-end custom typing feel.

• Layout: Full-Size (108 Keys)
• Key Features: South-facing RGB, Gasket-Mount, QMK/VIA programmable
• Connectivity: Three-Mode (Wired, 2.4G, Bluetooth)
• Reference Price: ~$60.17
• Best For: Programmers, accountants, and gamers who require a dedicated number pad alongside full VIA macro customization.

3. MATHEW KC87 Classic Three-Mode RGB Barebone Kit

The MATHEW KC87 delivers a straightforward 87-key Tenkeyless footprint for users who prefer the traditional TKL layout for gaming and typing. It includes full RGB backlighting, hot-swap sockets, and three-mode wireless connectivity, balancing desktop space efficiency with a complete function key row and dedicated arrow/navigation cluster.

• Layout: 87 Keys (Classic TKL)
• Lighting: Full RGB Backlight
• Connectivity: Three-Mode Wireless
• Reference Price: ~$56.58
• Best For: Gamers and everyday typists wanting a classic TKL form factor with customizable RGB lighting.

4. S100 Three-Mode 98% Layout Barebone Kit

The S100 utilizes a 100-key compact layout (98% form factor) designed to provide a dedicated numeric keypad in a footprint noticeably smaller than standard full-size boards. Featuring clean white backlighting and three-mode wireless connectivity, it offers a functional balance for data-heavy workflows on tighter desk setups.

• Layout: 100 Keys (98% Compact Full-Size)
• Lighting: White Light Backlight
• Connectivity: Three-Mode Wireless
• Reference Price: ~$48.57
• Best For: Users seeking numpad functionality in a more space-efficient format at an accessible price point.

5. Mathew Tech S68 65% Layout Barebone Kit

The Mathew Tech S68 is a lightweight, ultra-compact 68-key barebone kit. Retaining essential arrow keys while removing the function row and numpad, it provides maximum space for mouse movement. Fitted with clean white backlighting, hot-swap sockets, and three-mode wireless support, it serves as an economical entry point into custom keyboard building.

• Layout: 68 Keys (65% Compact)
• Lighting: White Light Backlight
• Connectivity: Three-Mode Wireless
• Reference Price: ~$41.15
• Best For: Minimalist desk setups, mobile work, and budget-conscious builders building their first custom board.

Comparison of Verified Barebone Keyboard Kits

Model	Layout / Key Count	Mount / Material	Backlight	Firmware / Key Features	Reference Price (USD)
MXRSKEY SCC80	80% TKL	Full Aluminum / Quick-Release Gasket	Barebone Custom	Tri-mode wireless, heavy metal case	$189.76
GMK108	100% (108 Keys)	Gasket-Mount	South-Facing RGB	QMK/VIA compatible, 3-mode wireless	$60.17
MATHEW KC87	TKL (87 Keys)	Standard DIY Barebone	RGB	3-mode wireless, classic TKL design	$56.58
S100	98% (100 Keys)	Compact Barebone	White Light	3-mode wireless, compact numpad	$48.57
Mathew Tech S68	65% (68 Keys)	Compact DIY Barebone	White Light	3-mode wireless, minimalist layout	$41.15

Recommendation Summary

Choosing the right barebone kit depends on your functional layout requirements, budget, and material preference:

• For Premium Metal Build Quality: Choose the MXRSKEY SCC80 if you want an anodized aluminum case with a quick-release gasket structure for optimal acoustic control and solid desk presence.
• For Deep Software Customization and Full Size: The GMK108 stands out with its south-facing LEDs, gasket mounting, and open-source QMK/VIA support, making it ideal for macro-heavy productivity.
• For Classic Everyday Computing: The MATHEW KC87 offers a balanced TKL form factor with full RGB for standard office and gaming setups.
• For Compact Number Crunching on a Budget: The S100 delivers a 98% footprint that preserves the numpad while saving valuable desk space.
• For Portability and Minimal Desks: The Mathew Tech S68 delivers a low-cost, compact 65% platform that leaves ample room for mouse swiping.