Update: The WD_BLACK C50 Expansion Card for Xbox is available now in local stores, starting with JB Hi-Fi as well as Amazon via international delivery. Original Story: Xbox Series X|S owners finally have at least one alternative option when it comes to expanding the high-speed storage on their consoles, with WD officially joining the fray with its new WD_BLACK C50 Expansion Card for Xbox – confirming a leak from back in April. 2 SSD slot, which lets users buy any compatible Gen 4 NVMe that has an appropriate heatsink and slot it into the console’s internals