The MiSTer I/O Board is an optional expansion that plugs on top of the Terasic DE10-Nano SoC. It adds the following features to the MiSTer Platform:

• VGA Connector. Check Analog video output compatibility
• 3.5mm Audio Jack with TOSLink
• 3 Buttons
• 3 Status LEDs
• Secondary SD card (for some cores)
• FAN for cooling the FPGA
• Expansion connector (in the form of USB 3.0 connector, but it's not USB!)
• SOG switch
• FAN
• Heatsink for your DE10 Nano with Thermal Adhesive