IOGEAR Pocket Card Reader-Ultra Micro Secure Digital Cards (microSD)/ TransFlash Cards (GFR291TF)

• Box Content - Universal Memory Drive (USB 2.0 Memory Card Reader/Writer), Quick Start Guide, and Warranty card
• Supports USB specification v2.0
• Remarkable high-speed digital image and data transfer to computer
• Specifically designed for digital cameras and also ideal for using with Cell Phones, Palmtop PCs, Handheld PCs, PDAs, Voice Recorders, Laptops, Gaming Devices and other mobile electronics
• System Requirements - Windows 2000, ME, XP, Available USB port, Mac OS 9 or greater

I have this attached to my key chain. It's quite small, and has replaced the USB thumb drive I use to carry. I leave an extra 2GB microSD card (class 2) in it at all the time. It works perfectly fine with the 8GB Kensington microSD card (class 6) in my phone. For whatever reason, file transfers are much faster through this card reader than through a USB cable and my phone via ActiveSync. Not sure if this is the smallest card reader for microSD cards, but it's small enough for me.

Some details:

The plastic cover/sled slides over the card reader.

The top of the card reader, and the very end of the USB port are exposed when the reader is stowed in the case.

The cover is unaffected if a card is in the reader.

As long as the string is intact, the cover and the reader won't be separated.

This card reader is sold under a lot of brand names.

The microSD card can be a bit of a pain to remove.

The string is easily replaceable if broken, worn, etc.