Buy 2 Kingston 64GB class 10 Memory Cards US$65.48 at Amazon

grab a Kingston 64GB SDHC/SDXC Class 10 UHS-1 memory card at Amazon. 1 Memory card US$32.74 + US$5.08 (shipping) = US$37.80 and two for US$70.65 with shipping. This Kingston memory card have ~30MB/s read speed and build using Ultra High Speed Bus I (UHS-1). It utilises FAT32 file system and it is secure so you don't have to worry about loosing your data because of its write protection switch which is built in to the card. Compatible with SDHC and SDXC hosts devices only. It is not compatible with normal SD enabled devices or readers. Because its speed and capacity, it is ideal for High Definition video recordings. This comes with a life time warranty and free technical support.