80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit
80Retros - GB40 40% Mechanical Keyboard Kit

80 Retros

80Retros - GB40 40% Mechanical Keyboard Kit

£115.00

Gasket-mount aluminium full-sized keyboard kit with hot-swap PCB, foam-modded internals and USB-C + Bluetooth connectivity.

Color
Color: Beige
Dispatch Time
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Product details

80 Retros GB40 Mechanical Keyboard Kit

80 Retros GB40 Mechanical Keyboard Kit

Retro Gaming Aesthetic, Modern Performance

The 80 Retros GB40 is a compact 40% mechanical keyboard kit that combines a retro gaming aesthetic with modern, enthusiast-grade features. It offers a high-quality typing experience with extensive customization options, making it a versatile choice for users who appreciate both its unique design and its technical performance.

The case design is inspired by classic handheld gaming consoles from the late 1980s, featuring details such as a non-functional speaker grill, rear A/B buttons, and a decorative joystick piece. The entire chassis is constructed from CNC-machined 6063 aluminum for durability and a premium feel.

Retro Gaming Aesthetic

Gasket Mount and Sound Profile

The GB40 utilizes a gasket mounting system to deliver a superior typing feel and acoustic profile. Eight silicone cushions isolate the FR4 plate from the aluminum case, which dampens vibrations and reduces high-frequency sounds. This creates a softer, more refined typing experience compared to traditional mounting styles.

To further tune the acoustics, the kit includes a multi-layer dampening solution:

- Poron Plate Foam (3.5mm): Positioned between the plate and PCB to reduce hollowness.
- IXPE Switch Pad (0.5mm): Placed under the switches to modify their sound signature.
- Poron Case Foam: Fills the bottom of the case to eliminate resonance and deepen the sound profile.

Gasket Mount Construction
GB40 Warm Gray colorway GB40 Detail view

Connectivity and Customization

Engineered for modern setups, the GB40 features tri-mode connectivity. You can connect via a wired USB-C connection, Bluetooth 5.2, or a low-latency 2.4GHz wireless connection using the included receiver. A 3000mAh battery provides reliable endurance for wireless use.

The hot-swappable PCB supports both 3-pin and 5-pin MX-style switches, allowing you to change switches easily without any soldering. For complete control over the layout, the keyboard is fully compatible with QMK and VIA software. This enables you to remap keys, create custom layers, and program complex macros through an intuitive online interface, which is essential for maximizing the functionality of a 40% layout.

Connectivity Options

What's Included

Complete Kit Components

CNC Aluminum Case. 6063 aluminum chassis with powder-coated finish and retro gaming-inspired details including speaker grills and A/B buttons.

Gasket Mount System. Eight silicone cushions isolate the FR4 plate for superior acoustics and typing feel.

Multi-Layer Dampening. Includes 3.5mm Poron plate foam, 0.5mm IXPE switch pad, and Poron case foam for refined sound.

Switches and Features

Pre-Lubed HMX Switches. Factory-lubricated HMX Monochrome switches provide smooth, consistent performance out of the box.

80Retros Game 1989 Keycaps. Cherry profile keycaps in pad-printed ABS (Beige) or PBT (Gray/Pink) with retro gaming legends.

QMK/VIA Compatible. Full software support for custom layers, macros, and complete layout control.

Frequently Asked Questions

What is a 40% keyboard layout?

A 40% keyboard omits the number row, function row, and navigation cluster to create an ultra-compact footprint. Numbers and symbols are accessed through layers, which you can activate by holding a dedicated key (like "Fn").

Is a 40% layout difficult to learn?

There is an initial learning period. However, once muscle memory for the layers is established, it can offer an efficient typing experience. Full QMK/VIA support allows you to customize the layout to your personal workflow.

What do I need to complete this kit?

This kit is all-inclusive. It contains the case, PCB, plate, foam, stabilizers, switches, and keycaps. The only requirement is assembly.

Why is QMK/VIA important for this layout?

The functionality of a 40% layout depends heavily on layers. QMK and VIA are powerful, industry-standard tools that provide an easy-to-use graphical interface for remapping keys, creating custom layers, and building macros without any coding.

Got questions? 🤔

Do you have any questions, or unsure if this product is compatible with your setup?

80 Retros GB40

The GB40 Mechanical Keyboard Kit by 80 Retros brings together high-end materials and modern features for enthusiasts looking to build a standout keyboard. The kit features a powder-coated CNC aluminium case with a gasket-mount design, hot-swappable PCB supporting both 3-pin and 5-pin switches, and foam-modded internals (Poron plate foam and IXPE bottom case foam) for a refined acoustic and typing feel. Available in multiple colourways with keycaps (ABS or PBT depending on version) and defaults to HMX Monochrome switches. Connectivity is supported by USB-C or Bluetooth wireless mode for flexible usage. Ideal for users who want a build-friendly platform with premium components and modern connectivity.

Specifications

Mounting Style: Gasket-mount aluminium case

PCB: Hot-swappable, supports 3-pin & 5-pin switches

Foam: Poron plate foam + IXPE bottom case/switch foam

Connectivity: USB-C (wired) or Bluetooth (wireless)

Inclusion: Keyboard kit only (switches/keycaps may be included depending on variant)

Design: Original 80 Retros GB40 keyboard kit

Inside the box

1 × 80 Retros GB40 Mechanical Keyboard Kit
Includes: wireless dongle, switch/keycap puller, coiled USB-A to USB-C cable, joystick accent piece

Compatibility

Compatible with Cherry MX-style switch stems (3-pin/5-pin)

Supports full-sized layouts with number pad, function row, navigation cluster

Warranty

1-year manufacturer’s warranty