When it comes to adding some extra storage capacity, the Xbox Series X|S consoles have a simple, though normally pricey, solution that nods back to the age of memory cards. For Prime Day Round 2, you can get a next-gen memory card–or to be more specific, a 1TB WD Black Xbox storage expansion card–for just $125 (down from $150). This is easily one of the best Prime Day gaming deals, as Xbox Series X|S expansion cards–and there are only two options–are almost never on sale. As such, we expect this deal to sell out.

Normally priced at $150, WD Black’s C50 expansion card released earlier this year as the lone rival to Seagate’s expansion card that’s been around for years (though is also very rarely discounted, wink wink).
This pure plug-and-play expansion card adds an impressive 1TB of extra storage to your Xbox Series X|S console, which in practice gives you more than three times the storage space on Series S and more than twice the space on Series X.