Features: The SD/TF card slot of the MX4SIO adapter is not flat, because each adapter is handmade. Since all adapters are handmade, it will take a few days to ship, thank you very much for your patience. This product is a DIY product. It will be constantly updated and improved. If you have any questions, please contact us before ordering. Not all SD/TF cards can be recognized, SanDiskbrand SD/TF cards are not available after testing. So please choose SD card kit from our list or use your own card, all cards are rigorously tested before shipping. All are not accepted, please check the OPL game compatibility list in the attached link. We also recommend that you update the compatibility details of the games in the list after rigorous testing, it will be a great help. Specifications: Material: Plastic, Metal Size: Approx. 12.5x12 for cm Model: SD Card/TF Card Color: Blue/White/Red/Purple/Orange Package Includes: 1x Adapter note: MX4SIO (Memory Expansion forSIO) is an adapter that allows you to connect a card to the memory card slot. MX4SIO cannot replace the memory card! Because it's just an adapter, not a converter, can convert card to memory card. Cards are not directly recognized by the console. Only specially developed homebrew software can access cards, although this software is currently under development (eg OPL). It is recommended to use the latest version of OPL v1.2.0Beta1832-f087feb7z, which can be downloaded.