Today you can buy SDXC memory card from various makers including Toshiba, Sony, SanDisk and Panasonic. There are different things which one can look for while purchasing a SDXC Memory Card as well.
SD Plus
This is the SDXC type which is created by SanDisk. This has the inbuilt USB connector in there as well. With this SD you can easily connect directly without requiring any special reader device that one has to purchase with the SDXC cards.
A-DATA SD
This SD card has been specially designed for the multiple usages. With this you can obtain the SD card with the Micro-SDHC, SDHC, Duel SD, and even three way Data transfer as well. This is the A-DATA was the first company to introduce the concept of the three way connectors in 2008, and this has also being copied by others as well.
Eye-Fi Inc.
This is the first company to produce the Wi-Fi capable SD card. This was a breakthrough as the card was usable on backward as well. Similarly the card also is quite usable with the wireless systems or static WEP network as well. The better security standards of these cards can make this an ideal system for transferring the data or images directly from the camera as well. The Eye Fi system is currently available in 2GB model as well similarly you can tag the different pictures and graphics with the Eye-Fi as well. .
Capacity Display
The capacity usage is often the most important aspect for the SD cards. The A-DATA has produced one memory card which can help you assess the memory status quite easily. This way you can transfer the data to the hard disk or make the free space on the disk quite easily as well. Also Gruvi is microSD card that is capable to supply some rare features including the DRM ones too.
Similarly there are various models of SDXC cards one can find in the market. The more professional camera and models of card can contain second card slot for the better storage as well. While the space is often sufficient to work with on the SDXC cards, but if you wish to buy that this one is available with extra cost for faster transfer rate. One highly recommended SDXC today is from Lexar. This SDXC Card comes with 64GB version at just $199.99. If you want to buy 128GB the price for this is around $329.99. With speed of 133x, 20MB per second this is considered quite reasonable Secure Digital Extended Capacity memory cards.