Although SD card ports are common on handhelds, they have never become standard equipment on laptops or PCs. USB Memory card readers allow regular computers to transfer data to and from SD cards, but carrying around the reader can be a hassle.
Two companies have now announced SD cards that save users this hassle because they can be plugged directly into a USB port. Each of these will use a slightly different design.
The SanDisk Ultra II SD Plus (which was first covered in an article earlier this week), folds in the middle to expose the USB port.
The Delkin SD-Xtra card, on the other hand, has a small removable cap.
Access speeds for the SD-Xtra card as a USB 2.0 drive are over 10 MB/sec, and over 7 MB/sec when used as a SD card.
However, the first SanDisk cards will be of higher capacity that the initial Delkin ones.
The SD-Xtra cards being released in March will be 128 MB ($40) and 256 MB ($60). Delkin won’t have 512 MB and 1 GB versions until sometime in the second quarter.
For comparison sake, the first SanDisk Ultra II SD Plus cards will be 512 MB ($110) and 1 GB ($150).