Important to note: This is a short pre-order, not an in-stock item. All units will be shipped out after the production is finished. The following timeline is our best estimation but is subject to change if affected by unexpected events. By placing an order, you acknowledge that this product is a pre-order / not in stock and have read the estimated timeline below.
Timeline:
GB Date: July 1 - July 21, 2026
Estimated Shipping Date: Q4 2026
GB/Pre-Order Cancellation/Refund/Return Policy:
Please note that all Group Buy (GB) and pre-order purchases are final.
• Cancellations or refunds are not accepted • Returns are not accepted for any GB or pre-order items
We recommend making your purchase decision carefully before the GB/pre-order closes.
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.
