YDKB Keyboard Controller Board USB/BLE Controller Type C Interface for HHKB Pro2 | eBay
Teensy 4.1 MIDI Breakout board 8in / 8out USB host from Deftaudio on Tindie
YDKB Keyboard Controller Board USB/BLE (Type C Interface) for HHKB Pro2 Series | eBay
Keyboard controller (computing) - Wikipedia
Tynemouth Software: Commodore PET USB keyboard / Keyboard testers
Arduino Micro — Arduino Official Store
Programmable USB keyboard controller module simulates keystrokes for up to 64 keys
USB and Ethernet Mach4 CNC controller - PoKeys57CNC - Polabs
USB keyboard controller and pi zero - Raspberry Pi Forums
Laptop Keyboard Conversion to USB - Hackster.io
Amazon.com: SJ@JX Development Keyboard Encoder Board Game Controller DIY LED Keyboard Development Board Media Music USB Encoder 88 Keys Arcade DIY Kit : Electronics
Control Interfaces :: I-PACs :: I-PAC2
Zero Delay USB Arcade Encoder | Review & Playtest - YouTube
Adafruit Feather RP2040 with USB Type A Host : ID 5723 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Programmable USB Keyboard Controller IC in a QFN28 chip or DIL28 Module
Model H - Replacement USB controller for IBM Model M keyboards