You can use almost any USB hard drive or SSD with Xbox Series X or S, but only the Seagate expansion drive lets you play games from external storage.
How to Add and Use an External Hard Drive with Xbox Series X or S
Hard drives : r/XboxSupport
External Drive on Xbox Series : r/xbox
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Xbox Series X Transfer-Speed Comparison: 170GB from the Internal Drive to Different external Storage solutions. : r/XboxSeriesX
Seagate Storage Expansion Card for Xbox Series X, S
Would this storage drive allow me to use my series x games without having to put them on the console itself? : r/XboxSeriesXlS
How to Add and Use an External Hard Drive with Xbox Series X or S
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