To find the best SD reader for your machine, we tested those that connect either via USB or by way of USB Type-C. They don't just read SD cards some can read microSD cards, CompactFlash (CF) cards, and even Sony’s Memory Stick Pro Duo. And the best way to do that-if you don't already have a card reader embedded into your computer or laptop-is to buy one that connects externally.Ĭard readers come in all sorts of shapes and sizes, with all types of connectors. Have your SD cards been filling up and collecting over the years? If so, you'll eventually want to offload those photos and files.