PCB 21 Surplus NumPad PCB wired, cheaper mechanical NumPad with scraps. Case: in plywood handmade PCB: front, rear Keycaps: Akko MDA BOW Switches: Kailh cream, Cherry black, WS Jade MCU: ProMicro clone Atmega32u4 PCB Rear: Case 404 (a second, more fashionable version) Case: four wooden pieces PCB: front, rear Keycaps: CRP-X Buger Parallel Worlds Switches: Kailh cream MCU: ProMicro clone Atmega32u4 USB C