Lexar Professional 133x SDXC Card
Speed: To 20MB/s (rated at Class 10)
Dimensions: 1.3 inches by 0.9 inch by 0.08 inch
Lexar maxes out its SDXC card lineup with its 128GB Professional 133x SDXC Card. An SDXC card is the same size as an SD Card--only slightly larger than a postage stamp. But the high-capacity SDXC designation means that you need to use hardware that can specifically support the format. The card is designed for rapid-fire picture taking and HD video recording. It can to record 48 hours of 1080p HD video all on a single card.