Stands for “Removable Solid-State Drive” or “Microsoft Surface Removal SSDs.” A special SSD spare package that is cross-compatible with any rSSD-compatible Surface device and doesn’t require a license or authorization to perform the replacement.

The term was introduced by Microsoft when launching the Microsoft Surface Pro X back in 2019. Here is the list of Surface devices that support SSD removal and rSSD:

Surface Pro 7+, 8, and 9, the rSSD module is located right under the kickstand.

Surface Pro 9 Removable SSD

For other Surface devices, you will need to follow the service guide to get inside the device’s chassis to remove or replace the rSSD.

Surface Laptop 3 SSD Expand