Supported Games OLED Steam Deck compatible! The ULTIMATE retro gaming experience! Insert the card into your Steam Deck, and you're up and running! Includes game artwork, 3D box art, header art, custom launch screen graphics, and bezels. Save your game at any point, and mark games as "favorites" for easy search and browsing. No system modification is required. This does not effect SteamOS. After inserting the micro SD card and before you power on your Steam Deck, hold the "volume down" button. While still holding volume down, press the power button. Choose to boot from “EFI SD/MMC Card”. For the OLED Steam Deck, after selecting the EFI SD/MMC Card, immediately press DOWN on the directional pad to select "continue boot", then DOWN again to select "verbose". UK import fees are 20%. Product does not include Steam Deck or controllers.