Documented removable SSD (rSSD) option; match capacity and Model No. limits before ordering. Microsoft guide description: "rSSD 256GB". Model No. limit: 2013. Substitute SKU (note only, not a separate catalog part): EP2-68342. PN type: SKU Part No.. OEM documentation only; not bench-tested.
Source notes
Surface Laptop Go 3 / Surface Laptop Go 3 device information and service parts (Microsoft Learn), guide text: "XTC-00001" (via AG-052). Model No. limit: 2013. Substitute SKU (note only, not a separate catalog part): EP2-68342. PN type: SKU Part No..