The MiSTer FPGA AV Pro v9.2 IO board is a modular hybrid design that provides the functionality of the Digital IO board. This modular design allows it to be used as a Digital IO only for a dual SDRAM setup or as an Analog IO with the AV module.
MiSTer FPGA Digital IO Board v1.2 With Quiet Fan & Jumper Lead for DE10 Nano
Mister FPGA - Genuine DE10 Nano, Analogue IO Board, USB hub, 128mb SDRam + Case
MiSTer FPGA DE10 Nano 128mb SDRAM USB Analogue IO Stack + Extras
MiSTer FPGA DE10 Nano / 128mb SDRAM / Analogue IO / WiFi + BT / 256GB / SN30Pro
MiSTer FPGA USB Hub v2.1 & Bridge Board, Splitter Cable, Standoffs for DE10 Nano
MiSTer FPGA Real Time Clock Addon Board RTC v1.4