USB 2.0 SDHC MicroSD/TF/M2 Card Reader with Strap

Pros: I use a sony ericsson mobile phone, that uses m2 cards, but i also use microsd on other devices as my camera, my calculator and some other, this gadget can read both.
Its fatter than some other microsd card readers on dealextreme but thats a pro for me as it has the normal usb conection. I have used others like this one
http://www.dealextreme.com/details.dx/sku.7106
and its so thin that i feel that its going to break when it is conected and something its hanging from it, and nobody knows that its a pendrive and how to use it.

Cons: when connected, the m2 its exposed more than i expected

Other: buy it if you need to read both m2 and microsd cards!

Pros: This adapter is really tiny & compact. Perfect for keychain to go with you where ever you might need an USB drive. It reads either a microSD or m2 card.

Cons: It worked for about 1 month and then when I pulled the adapter one day when the PC was stuck, the device seemed to be half alive. Windows still sees the USB reader but it could no longer recognize any of my microSD cards. All my microSD cards still work fine with other USB readers/writers.

Other: Great if it works.

Pros: Not to small like some of the other card readers. Well made with one exception....see cons. Tough plastic, will not break like those micro card readers

Cons: The two parts of the case separate when pulling out of USB slot. Slightly slower then some card readers I have used.

Other: Small, cheap and useful. I applied a small amount of 2 part epoxy to the case and now it stays together.

Pros: Very small and compatible with micro SD and Sony exclusive format M2. Just insert any of these cards and plug into a usb port to use it. I always use to manage my celphone data.

Cons: Like any other small thing, is easy to lost it.
And the m2 card doesn't realy fit in, but this is not a con, only a caracteristic...

Other: Need to buy more, one for each member of my family and dozens for my friends.

Pros: nice build quality, much more sturdy a design than others at this price range.

Cons: it may look like the sandisk one, but dont be fooled. it is a replica. and unfortunately, the logic chip is a tad flawed, and occasionally you need to remove and reinsert the device to read/write to it. this can lead to corrupt data.

Other: i've tried 3 or 4 different usb microSD readers of this size type in this price range, and all seemed a little flawed. i'd reccomend spending a little more for a better one, perhaps from a name brand, especially if you plan on keeping it on a keychain.

Pros: looks great, small and easy to handle. price is also very seducing

Cons: works slow, I bought 8ea of these, and I noticed that not all units are the same chip - 2 units stopped working within a week, some just became slower and slower until also died.

Other: isn't worth the money, build quality is horrible. I wish it was working longer.