As game files get larger, the WD_BLACK C50 Expansion Card for Xbox is the fast and easy way to give your Xbox Series X|S a big capacity boost and keep more titles installed. Just plug this officially licensed card directly into the console for similar performance as the Xbox internal storage. Included with your purchase is a 1-month membership of Xbox Game Pass Ultimate, with access to 100+ games on consoles and PC, plus online console multiplayer.