For information on what type of sd card is supported on your surface, see below: I just bought a sandisk 256 gb microsd card but found not working with my surface 3. Shop Microsoft Surface Laptop (Intel Core i5, at Artsy There are also lots of counterfeits mixed in with legit stock at amazon, so if you buy a larger capacity card, try to buy from a brick and mortar retailer with a great return policy. Microsoft surface 3 sd card slot . What is the maximum (approved/recommended) sd card capacity that the microsoft surface 3 supports? For information on what type of sd card is supported on your surface, see below: Use the microsd card slot for extra storage or transferring files. Surface go with lte advanced. There are variances vendor to vendor. For more info, see find storage options for your surface. A) this if for a microsoft surface 3. I have an rt system, pulled the sd card out of it, and there is only one slot available on the pro, but the sd card is not going...