SD Association for lagging behind. A scant seven months after the aforesaid entity revealed the UHS-I specifications, in flies the predicted successor at CES. UHS-II is a newfangled bus-interface system that promises high-def recording speeds of up to 312 megabytes per second, enabling pro shooters and videographers to actually consider an SDHC or SDXC-based camera rather than relying solely on CompactFlash or SSD. The protocol will be an integral part of the SD 4.00 specification that's going out to members later in the quarter, and naturally, it'll only be useful to SDXC and SDHC cards. We're looking at a 3x increase in transfer rates, and these same upticks will be gracing UHS-II microSDXC and microSDHC cards, too. Best of all, UHS-II cards will be fully backwards compatible with older devices and readers, as the speed increase simply relies on a new row of pins on a familiar form factor. In related news, a new eBook SD application has been announced, though the details surrounding it are murky at best. So far as we can tell, eBook SD cards will have their content pretty well contained, giving publishers the ability to rest easy while still getting content out to the myriad products that can understand SD. Peek the full release after the break.