These readers are very small, you can fasten them onto your keyring, and store all your import files onto them. I have two of these, a red one and a gray one. There is no difference between them apart from the colour. If in the future you want to store larger files just pop in a bigger micro-sd card. Speed wise it depends on the card that you put into it as it is just a reader, the 8gb that comes with this is OK, its a class 4, which means it will take you about a minute to copy over a 200mb file. I have a 32gb in my red one now so i can store some blue-ray movies on it to watch on my streamer. Just be careful what you put this into, if a friends laptop has a ...  Read the complete review