I read on wikipedia these cards are for having multiple roms on 1 cartridge.
Does this one work? The front is in glossy, shining silver.
I will post a picture of it so you can clarify it
only ps5 updated to latest firmware can go on psn, jailbroken ones just don't use psn or they risk getting flagged or banned, altho spouting profanity in online play alredy does that