Sony has published a guide on the PlayStation support site related to installing M.2 SSDs on PlayStation 5. At the moment this option is reserved for those who are testing the firmware in Beta but will soon be accessible to all.
The installation guide for M.2 SSDs on PS5 is only available in English, once installed the unit can be used to install and launch games and applications for PS4 and PS5, thus freeing up space in the internal memory of the console.
Sony specifies that not all M.2 SSDs are compatible with PlayStation 5, so make sure your product supports the PCIe Gen4 x4 M.2 NVMe interface and has a capacity between 250GB and 4TB, as well as a speed of at least 5,500 MB / S reads.
The company clearly specifies not to try to install an M.2 SSD if you don’t have the latest Beta firmware for PS5, otherwise you may need to reinstall the operating system or format the console. Sony’s guide explains in detail how to add or remove an SSD but make sure you have good dexterity and adequate tools such as a Phillips screwdriver and maybe a flashlight or light bulb to improve visibility. Among the first SSDs compatible with PS5 we find the Seagate FireCuda 530 just announced and arriving during the summer.