for MiSTer IO Board: The for MiSTer IO Board is an optional expansion that plugs on top of the for Terasic DE10-Nano SoC. It adds the following features to the for MiSTer Platform:VGA Connector. Check Analog video output compatibility3.5mm Audio with TOSLink3 Buttons3 Status Secondary SD card (for some cores)FAN for cooling the FPGAExpansion connector (in the form of USB 3.0 connector, it's not USB )Additional to integrate the for MiSTer into cases.The appearance and color of products from different batches , which does not affect their useColour:blueMaterial:PCBPackage Contents:1 x IO Analog Board1 x FanOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.