Xbox Series X may support CFExpress memory cards

165GB Storage Capacity per Card, NVMe PCIe 3.0 x4 Bus, Max Read Speed: 1700 MB/s, Max Write Speed: 1500 MB/s, Min Write Speed: 1400 MB/s, Records

ProGrade Digital 165GB CFexpress 2.0 Type B Cobalt Memory Card (2-Pack)

Seagate Storage Expansion Card for Xbox Series X

CFexpress - Wikipedia

Storage Expansion Card for Xbox Series X, S

Lexar 80GB Professional CFexpress Type A Card GOLD Series – Design Info

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Lexar 320GB Professional CFexpress Type A Card GOLD Series with Card Reader

Adapter Turns SSDs Into Cheap CFExpress Cards

Ssd Cards Xbox Series X, Hard Disk Ssd Xbox Series

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Lexar 256GB Professional CFexpress Type B Card DIAMOND Series – Design Info