We are living in a 4K age, with TVs, monitors, and even some smartphones capable of display such high-resolution content and cameras, and, yes, smartphones being able to create hi-res images and videos. The bottleneck, however, is the intermediate holding place for 4K content captured by cameras. In other words, memory cards. While handy and compact, SD cards aren’t exactly the fastest storage medium around, but they’re the only ones you can use with digital cameras. Well, worry no more, because Sony has just announced its new SF-G line of SDXC cards which it boasts is the world’s fastest memory card.