my 64GB sd card has like 3GB left so i ordered this 128GB SD card
http://www.amazon.com/SanDisk-microSDXC-Standard-Packaging-SDSQUNC-128G-GN6MA/dp/B010Q57S62/ref=sr_1_2?s=pc&ie=UTF8&qid=1453178262&sr=1-2&keywords=128gb+micro+sd+card
i managed to fit 60 retail games, 9 VC games, 6 eshop games...