PS5 Laser: KES496 vs KES497

Hi there!
I'm sourcing a new laser for my PS5 since it's not copying the data from discs for new games (I want to play Ghost of Tsushima %#*@ it!) but works fine for games already downloaded (disc for God of War works fine since I downloaded it ages ago) and I've encountered two models: the KES-496 and the KES497AAA. Is there a difference I should know between the two models or are they both fine? I got a PS5 like a week after they came out so I probably got a really early unit.