The series XS should have had 2 expansion slots in the back

Seagate Storage Expansion Card for Xbox Series XS 1 TB Solid State Drive - NVMe Expansion SSD for Xbox Series XS Rs 13999 -

External hard drives come in far greater capacities than the expansion cards so if you need anything larger than 2TB (and anything up to a

xbox expansion slot Features SEAMLESS GAMEPLAY Designed in partnership with Xbox to seamlessly play Xbox Series XS games from the internal SSD or the expansion card without

xbox series s cd slot Our Xbox Series XS Storage Expansion Card delivers additional game storage at peak speeds, replicating the console's internal SSD experience ” — Jeff Fochtman,