The KeyBoy Advance is a 50% HHKB custom keyboard from PromoType, inspired by the Game Boy Advance and shaped around the feel of a compact handheld console.
Its case design keeps a practical keyboard silhouette while echoing classic portable-console details: a deconstructed front, a rear line inspired by a battery cover, an upper-right power-indicator detail, an asymmetric upper-left light strip, and a speaker-inspired lower-right module with layered color separation.
Design and feel
50% HHKB layout with a number row
Top O-ring mounting system
Upward-curving side profile and raised lower edge for a floating case feel
Poron-supported bottom pillar designed to reduce resonance around the stepped spacebar
Shoulder-button micro switches with Vial customization
PCB options noted in the IC
MX wired soldered
MX wired hot-swap
MX dual-mode hot-swap
MX tri-mode hot-swap
Specifications
Name: KeyBoy Advance
Layout: 50% HHKB
Typing angle: 7 degrees
Front height: 19 mm
EKH: 22.9 mm
Mounting: Top O-ring
Color options
Available in Anodized Silver, Anodized Pale Gold, Anodized Teal, Coated Classic, Coated Purple, Coated Orange, PC Pure, PC Purple, and PC Cyan.
Based on the Geekhack interest-check post for KeyBoy Advance.
