Print 116 comment(s) - last by Ghandi.. on Jan 11 at 8:29 AM

SDXC cards will be available in capacities up to 2TB

The Secure Digital (SD) format has come a long way since its original inception. Originally conceived as an offshoot of the Multimedia Card (MMC) format, SD cards have matured over the years into the Secure Digital High Capacity (SDHC) versions that are prevalent today for capacities greater than 2GB.

Current SDHC cards are artificially limited to just 32GB, which means that a new standard is being ushered in to boost capacities into the stratosphere. As a result, the new Secure Digital eXtended Capacity (SDXC) format was introduced today at CES. SDXC cards have a theoretical maximum capacity of 2TB and theoretical maximum read/write speeds of 300MB/sec.

The first SDXC cards will hit the market during the first quarter of 2009; however, these first generation cards will have a maximum transfer rate of 104 MB/sec.

"SDXC combines a higher capacity roadmap with faster transfer speeds as a means to exploit NAND flash memory technology as a compelling choice for portable memory storage and interoperability," said Gartner's Joseph Unsworth, research director, NAND Flash Semiconductors. "With industry support, SDXC presents manufacturers with the opportunity to kindle consumer demand for more advanced handset features and functionality in consumer electronics behind the ubiquitous SD interface."

"SDXC is a large-capacity card that can store more than 4,000 RAW images, which is the uncompressed mode professionals use, and 17,000 of the fine-mode most consumers use. That capacity, combined with the exFAT file system, increases movie recording time and reduces starting time to improve photo-capturing opportunities," said Canon General Manager Shigeto Kanda. "Improvements in interface speed allow further increases in continuous shooting speed and higher resolution movie recordings. As a memory card well suited to small-sized user-friendly digital cameras, the SDXC specification will help consumers realize the full potential of our cameras."

We should expect to first seeing SDXC cards from the usual suspects such as SanDisk, Lexar, and Kingston. SDXC will more than likely carry a hefty premium over current SDHC cards, but expect to see that price differential close with time.

Comments     Threshold

This article is over a month old, voting and posting comments is disabled

why not a pciex1 card?
By teflonbilly on 1/7/2009 2:46:34 PM , Rating: 2
I was reading this and with the transfer speeds, even at the low end they talk about first , would it not be possible to make a card, plugged into a pciex1 or x4 slot to hold a few of these sd cards? I remember a while back (couple years I think) reading about pci cards that hold ram to be used as a super fast hard drive. To me this would be amazing. To buy 3 or 4 of these cards, plug them into the card in your computer, or even to a slot int he front of your tower, and use them as your drive. Not just as basic backup or something but for system or transferable storage.

Am I missing something or is this actually a possibility?

RE: why not a pciex1 card?
By TomZ on 1/7/2009 3:11:37 PM , Rating: 2
Possible, yes. But SATA/SAS is maybe a better choice since BIOS, operating systems, and drivers already support this type of interface. The hardware for what you describe is not a big deal, it just would also require a lot of new software.

"If a man really wants to make a million dollars, the best way would be to start his own religion." -- Scientology founder L. Ron. Hubbard

Copyright 2016 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki