In Amazon Deal of the Day(also some good deals on several other (micro) SDXC / SDHC cards from 32 GB all the way to 512 GB - run your laptop off of that puppy!!)

PNY Elite Performance 64 GB High Speed SDXC Class 10 UHS-I, U3 up to 95 MB/Sec Flash Card (P-SDX64U395-GE)

Up to 95MB/sec speed for the ultimate transfer rates
Ideal for High Performance DSLR cameras and HD camcorders, especially for ultra fast action shots, sports video, HD video and other professional-quality photography
Class 10 UHS-I, U3 performance allows burst-mode shooting, Full HD and 4K Ultra HD video recording
Fast speed performance minimizes time spent transferring photos and video to your computer
Stores approximately 22,756 photos so you can shoot more shots with fewer downloads
Reliable & Durable: Magnet Proof, Shock Proof, Temperature Proof, Waterproof
Compatible with SDHC and SDXC devices
Backed by Lifetime Limited Warranty