The most recent speed gains have been in SD format cards, making us wonder about the larger CF card. But that concern has been to an extent dispelled by some of the recent developments in this very fast-changing field. One of the newest developments unveiled at the show was a card that sits between those two sizes, the XQD card. The first camera to accept the new memory card is the Nikon D4, although the D4 also features a CF slot.
XQD has a smaller form factor than CF, so they’re not interchangeable. Sony, the company that introduced the world’s first XQD card, notes that you can record up to 100 Raw image frames from continuous shooting mode using the card and obtain 125MB/sec read/write speed when using a PCIe port; new XQD card readers are available as well. The casing around the card is “robust,” with contact pins inside the casing itself, which Nikon says helps eliminate problems in the field.