Sony has recently issued an update to the PS5 where with this update, it unlocks the console’s SSD bay. We don’t mean unlock as in physically, but users can now open the console and add their own SSD if they need extra storage. Previously, Sony had introduced this feature but it was only available to beta testers, but this update means that all console owners should be able to take advantage of it.
That being said, don’t get too excited just yet because Sony has a list of requirements for SSDs for the PS5. According to Sony’s support page, the SSD you choose must be an M.2 SSD, not an M.2 SATA SSD. Also, the entire SSD needs to be formatted for the PS5 and you cannot partition it.
The SSD also must have its own heatsink, but Sony advises against adding a heatsink to it if it already has one as it apparently affects the effectiveness of it. Also, the SSD in question needs to have at least 5,500MB/s with a PCIe Gen4 interface.
This does narrow down the amount of SSDs that you can choose from, but those are the requirements you’ll have to take note of.