Xbox Series X/S can use standard SSDs in the expansion card slot

User discovers that other drives can be converted to work in the card’s…

Xbox Series X SSD Replacement - iFixit Repair Guide

As game files get larger and larger, the WD_BLACK C50 Expansion Card for Xbox is the fast and easy way to give your Xbox Series X or Xbox Series S a big capacity boost so you can keep more titles installed. Just plug this officially licensed card directly into the dedicated slot on the back of your Xbox Series X|S console and it’s good to go, no extra software or installation steps needed.

WD_BLACK C50 Expansion Card Xbox 1TB WDBMPH0010BNC-WCSN

Are they're any cheaper alternatives for this. : r/xbox

Xbox Series X Will Require Proprietary Cards to Expand Hard Drive Space

Want cheaper Xbox Series X SSD storage? Try this $30 adapter

Review: The WD_BLACK Xbox Series X, S expansion card still isn't enough

Xbox Series X Teardown - iFixit

Modder Claims You Can Use A Standard SSD In The Xbox Series X, S Expansion Card Slot

Microsoft Xbox Series S 512 GB All-Digital Console (Disc-Free Gaming) White RRS-00001 - Best Buy

Report: There may be a cheaper 500GB Xbox Series X, S Seagate storage card on the way

Modders looking into cheaper expendable storage options for Xbox Series X, S

Two New Sizes For Xbox Series X/S Expansion Cards Coming Soon - Game Informer