|memory cards themselves do not need a driver - LOL|
What you are probably referring to is the driver for the card reader.
You can obtain this driver from your laptop maker's support website, you just need to know the laptop model.
(I'm assuming it's on a laptop since you mentioned Realtek as the card reader driver).
If it's on pre-built desktop PC, same applies. Get the driver from that PC maker's support website. You just need to know the PC model.
message edited by phil22