This board allows bench access to the IO provided by the ONIX FMC Host Board. It features:

• 4x coax headstage ports, each with a physical power switch
• BNC, IDC (ribbon), or direct wire access to 12 analog inputs or outputs
• IDC (ribbon) or direct wire access to 8 digital outputs and 8 digital inputs (5 volt tolerate)
• 6x buttons for marking experimental events
• 41x state-indication LEDs
• 3x high-speed clock feed throughs
• Full-speed, USB 2.0 access to the onboard TinyFPGA BX for communication, programming, and customization
• HARP bus
• Rugged M6 or 1/4-20 mounting options compliant with 19" racks and optical tables
• Open-source gateware created using open-source FPGA toolchain: yosys & nextpnr