Summary: After 18 months attached to my necklace, being worn around my neck, the gold contacts have worn off the USB drive and it is no longer readable by a computer. All the silver has also worn off to a dull grey metal.
Summary: I love these Pico minis! They're about as small as they can be and are thus easily transportable. I keep one in my wallet with all my financial, contact, and medical information (encrypted, of course).
Summary: I have an 8gb pico on my keyring. It is metal and very durable, worthy of the $20 I paid for it. The picture for this looks like it is a green anodized aluminum or something similar. Well it isn't. It is cheap plastic. They work, but I had to superglue a thin a shim to the bottom of two of them to keep them from losing connection. Would recommend looking around at other devices before purchasing this.
Summary: Overall, this works well. It's *tiny*, which is what I needed. The pros: works; is small. The little springy "keychain" attachment was a pleasant surprise. The cons: doesn't work in every USB port (in fact, in my laptop it only works in 2 of the 4). Since it's so small, it can fit either way (unlike typical USB connections, which have a 'guide' to ensure you're putting it in rightside-up).
Summary: I have several different brands of mini drives this being among them. I have tried this one in several computers and in my car. It works okay once it makes contact. I don't know if it is just this particular unit or all of this brand has the symptom but I thing the contacts are a little bit too recessed and so in some USB receptacles it takes some fiddling around a bit to make good contact.