We have a sneaking suspicion we've written this post before. Oh wait, we did -- sort of. Months after taking a victory lap to flaunt the world's fastest SDHC card, Delkin is back, this time with a superlatively speedy SDXC in tow. The 64GB Elite633 card promises read and write speeds of 95 MBps and 45 MBps, respectively -- that compares with 95MBps and 80MBps for the company's 32GB SDHC. With a price of $539.99, of course, it wasn't exactly intended for those of you who are too lazy to dump some 17,000-odd photos onto a hard drive. Rather, it'll come in handy for the enthusiast crowd, especially folks with a penchant for high-def and 3D video. As for the rest of you casual shooters, we're quite partial to a game we like to call, "How much camera could I get for that $540?"

The SD Card Association (truth be told, one of our favorite card-related associations) has a new spec in the works that will almost triple the speed of its SDHC and SDXC cards, according to CNET. The specification, which should be complete Q1 next year, will achieve 300MB per second by adding a second row of electrical contacts on the bottom face of the card, and will be backward compatible with older, slower devices. Although being referred to internally as SD 4.0, brand names for the technology are still being considered -- with UHS-II (the successor to UHS-I ultra-high speed bus cards) as one possibility.

We've already heard some of the claims made about SHDC cards using the new UHS-I specification, and it looks like we'll now soon have our first actual cards based on the spec courtesy of Panasonic. The company has just announced some 8GB and 16GB UHS-I SDHC cards at IFA, which boast a Class 10 speed specification and promise to deliver a maximum data transfer speed of 60MB/s, or about twice that of Panasonic's current top-end cards. No word on pricing just yet, but Panasonic says they'll be out this November. Full press release is after the break.