Nikon's XQD memory cards can now be preordered in the US despite rise of CFexpress

More than a year after it announced them, Nikon has officially launched its XQD memory cards in the United States. This is unfortunate timing for Nikon, which must compete with the new wave of CFexpress cards being released by a number of major competitors, including SanDisk and ProGrade. Nikon offers a number of camera models that support XQD cards, which are physically smaller than CF with ample storage space, rapid speeds and a high level of durability. Here to challenge them is the CFexpress...