It looks like a SD card, but it can attach to a USB port and the best part is - it can read micro-SDHC cards, although not specified on the box.
This adapter will convert your micro-SD or micro-SDHC cards to a SD card so you can use in your camera. It will also convert it to a tiny USB drive so you can connect it directly to your computer using a USB port.

So you got yourself a nice micro 4GB card for your cellphone but you want to use it for your camera as well? The obvious option is to use that cool adapter which comes with most of the microSD cards. But why settle with that when you can make your tiny microSD card into a USB drive?

Insert your card into the slot at the back and you’re good to go. It will work with 4GB micro-SDHC as a SD card and as a USB drive. I didn’t test for higher capacities.
Please note: Micro SD Trio 3-in-1 Adapter means - microSD card + microSD to SD Adapater + USB drive. It actually functions as two devices in one.
Get it here: These cheap adapters are being sold here for $3 USD (incl. shipping)