Arduino-based 68-input USB Control Panel / Button-box : r/hoggit
Sim Racing Button Box : 8 Steps - Instructables
Budget Adaptive by ThatGuyBud — iOS & Android Supersized 2 Button USB Switch Box AND Interface
USB BUTTON BOX
PC Sim Racing Button Box 12 Function Buttons Plug and Play - Etsy Sweden
For Fanatec Thrustmaster Logitech PC USB Simulation Racing Instrument Center Control Button Box For Truck ETS2 Hub Simracing| | - AliExpress
BUTTON BOXES – AMSTUDIO
Amazon.com: Rybozen USB 2.0 Switch Selector, KVM Switch Adapter for 4 PC Sharing 3 USB Devices, One-Button Swapping Box Hub for Keyboard, Mouse, Scanner, Printer, Computer, with 4 USB Cables : Electronics
RSeat Europe SimracingDSD Button Box Pack for Fanatec CSL WheelRigs and cockpits for direct drive wheels
PC Simulation Racing Instrument Center Control Box EuroTruck Hub Multi-function USB Button Box for Fanatec Thrustmaster Logitech - AliExpress
GT Masters M4 ST | Sim racing button box – BoxOneRacing
PC USB button Box 28 functions back lit Red with Neon Labels sheet sim racing | eBay
Easy sim racing button box - Shift Point Design
Custom Button Box with Analog Axis Using a Cheap Arcade USB Encoder (info in comments) : r/hotas
Kevin Peat - Arduino USB Button Box V2
PC Button Box
Zqsr Pc Usb Simulates Racing Car Central Control Box Multifunctional Control Button Box For Fanatec Thrustmaster Simdid - Accessories - AliExpress
PC or PS4 USB 27 function push Button Box Red + start engine simracing | eBay
BBJ SimRacing PC USB Button Box with Key Red/Carbon | eBay
Mouse Button-Box | GPII Unified Listing
PC Sim Racing Button Box - 12 Function Button, Plug and Play USB, AMPS Mountable | eBay
PC USB button Box 31 functions push buttons & encoders + toggles for sim racing | Usb Button boxes for sim racing and Flight simulators | Simracing 4 U
USB Card For Button Box - SpeedMaxRacing
Budget Adaptive by ThatGuyBud — iOS & Android Supersized 2 Button USB Switch Box AND Interface
PC USB Button Box 29 Functions Back Lit Red Sim Racing - Etsy