Secure Digital (SD) cards are used in compatible digital cameras.
MicroSD cards are used in tablets and phones that has MicroSD slots.
Amazon is also selling a Samsung 11.6-inch Chromebook 2 for $240 today.
It usually sells for around $300.
A Chromebook is basically a cheap laptop with long battery life, meant for surfing the web, taking notes, and storing/editing digital photos.
It can be good as a travel laptop (checking email, storing digital camera photos), and for note-taking at class.
This one has an 8-hour battery life and weighs 2.65 pounds.
It has 4GB memory, 16GB of storage, and a 1.9GHz processor.