I have an old SD card reader on my computer that I took out of an old build I had. But it only reads SD cards (or microSD if using an adapter) up to 2GB, so not very useful. I bought a USB micro/SD card reader at MicroCenter for less than $5. It also reads some other type of cards, which I don't have.
Ok, I have only one bay, and it’s only one bay I really “need”. Even though a dvd drive may be a bit out of date, is is better than what would be a dedicated sd card drive. And to Paul NZ, ok it has an sd reader, but that’s a lot of unnecessary usb slots. I have 4 on top of my case.
I’ll end it here. Case closed. I understand there are internal and external sd card readers, but just how my setup and needs are laid out, I’m going external