A-Data’s new Speedy SD Duo flash memory card is making some waves with its multi-purpose design that takes a regular Secure Digital (SD) flash memory card and adds a built-in USB port.

On balance, the design is really just a variation of SanDisk’s Ultra II SD Plus, which also sports a built-in USB connector but has what amounts to an attached cap for that connector instead of a removable one, like the A-Data Duo.

Still, we dig the design and welcome more competitors in this space, as its bound to only drive prices down (these dual-use SD cards command a premium of around 50% compared with regular SD cards).

A-Data’s site has woefully little information about the Speedy SD Duo, and lists capacities at only 1GB and 2GB. But GizFever is selling the following: 2GB for $28.99, 4GB for $42.99, and 8GB for $106.99 (prices include shipping).

Depending on where you shop, those prices are about the same as the SanDisk Ultra II SD Plus for the 2GB and 4GB, and more expensive for the 8GB.

We like the integrated USB cap design more and the SanDisk name generally stands for higher quality than A-Data, but to each their own.