Having multiple personal data devices from Cell Phones using the Micro SD format, MP3 Players and cameras using the Mini and full-size SD format, and a new HD Camcorder using the Full size SDHC format, I was looking for a solution that could handle all three formats. This does that nearly perfectly. Would have been perfect if the USB MicroSDHC reader could read the larger Mini and Full size SD formats but that's a minor issue. What you get is a small carrying case for the 8GB Micro SDHC Class 4 chip that also carries the included separate adapters to read that chip in either Full Size SDHC or Mini SDHC or USB 2.0 format. The USB adapter doesn't fit in the included case and doesn't have a cover for the USB port itself but does have a cover for the Micro SDHC Chip. I'd recommend checking for lint/dirt regularly in the USB socket if you're going to attach the USB reader to something you carry in a pocket via the included and assembled short attachment string with ring for a keychain. The string is about 4cm in length. The attachment ring has an approximate 7mm inside diameter and is a typical keychain 2 turn coil of spring wire so it can be attached like a normal keyfob device or perhaps to the carrying strap of a typical Point and Shoot digital camera.
The 8GB microSDHC chip, placed in the Full-Size SDHC adapter, works in My Canon HF100 Camcorder.
Overall a handy little product at a reasonable price that gives me a lot of versatility in dealing with my family's many portable memory devices.