The 80 Retros GB40 Mechanical Keyboard Kit is a compact retro‑inspired 40% mechanical keyboard kit that blends a throwback aesthetic with modern customizability. It comes with a powder‑coated CNC aluminum case featuring a gasket‑mount design and foam‑damped internals to create a refined typing feel with reduced resonance and satisfying acoustics. The kit includes a hot‑swappable PCB that supports both 3‑pin and 5‑pin switches, letting builders easily change switches without soldering. Versions of the kit offer pad‑printed ABS or PBT keycaps and pre‑installed HMX Monochrome switches for smooth keystrokes straight out of the box. Dual‑mode connectivity enables use via USB‑C wired or Bluetooth wireless, with a coiled cable and wireless dongle included. A small joystick accent piece adds playful character and visual appeal to the unique design. South‑facing RGB lighting enhances the retro look with modern illumination. Its ultra‑compact footprint omits the number row and navigation cluster to save desk space while retaining essential functionality through layered controls. The included accessories, like switch and keycap pullers, make assembly and modification easy for enthusiasts. Overall, the GB40 keyboard kit is ideal for DIY builders seeking a stylish, customizable, and compact mechanical keyboard experience.