SanDisk SDDD2-128G-GAM46 Ultra USB Dual Drive USB 3.0 Up to 150MB/s Read - 128GB

It came exactly as it was described and I really like it. The OTG feature is really useful for quickly transferring files when needed, though I still mainly use it for my computer. And the fast download/upload speed is a real plus when handling large files, or transferring a lot at once. The only thing is that it is a little bit small in that it's not that long, although it does still have a key ring loop which I do use to make it a bit larger.It is coloured white so it is not that hard to find it if you happen to misplace it, as it stands out from most backgrounds. And the key ring loop is on the side, which I thought might be a bit finicky to use before buying this, though when I actually received it, it doesn't really get in the way. I definitely recommend using a keyring with this, however if you do want it to be as small as possible, then maybe it's not need for you, though I think it would fit in any pocket either way.

Fabulous little memory stick that saves having to use a USB lead when transferring files between a table/phone and your computer.The slider can be left in the middle (as shown) or gently pressed and slid to reveal the full size or micro USB connector. The slider holds the connector in place, and again has to be gently pressed to move it again. Works well so far and seems robust enough as long as you're not too brutal with it.The metal clip appears to be just so you can connect a lanyard to it. Again I'd not expect it to take too much abuse.The memory itself seems to be fairly quick. I've not tried huge amounts of data as my devices equipped with micro USB connectors haven't had that much memory to copy across. Certainly nippier than USB 2 memory cards.This would be an excellent backup to take on holiday, or to free up space on your phone if you use that primarily for picture taking.

Plugged it into phone. Phone recognized it and showed 'usb inserted' on screen. Went into files found usb and copied music and photos onto it. Plugged it into tablet. Tablet recognized it. Copied everything onto tablet. It was really easy. Plus, everything is saved on it, just in case. 2000 songs copied in about 10 minutes.Also used it on someone else's Amazon Fire. It was a bit fiddly but it did recognize it.A couple of niggles. It does get warm when being used. Also, it doesn't feel 'solid'. When pushing the little lever that moves each usb out, It feels stiff. It feels as if you push it too hard it might break. Just need to be careful. It doesn't seem to fit snuggly right into the devices fully. Sort of partially out (if that makes sense). That's the micro side. Haven't used the 'standard' usb side.Four stars for the heating up and the not 'fitting snuggly', not for usage. I would give usage five stars.All that aside, it works! Is really handy and a great idea. I would buy another one again, if I needed to.

PROSGreat piece of kit. Have loaded all (600+cds) onto it and it is plugged into the USB port in my car. So I have easy access to ALL my music.Acts as a back-up for my music collectionAGAINSTSmall issue but the slider that switches it between USB and Micro USB means that as you attempt to plug it in to a USB socket, it tends to push the other connector out rather than plugging in. Easy to deal with on your laptop, but tricky in a confined space in the armrest of the car. Would be perfect if it had a lock for USB or Micro USB

Contrary to expectations (the 'broadside' photo is deceptive) the metal band is essentially a clip that has space for a small split ring or mobile phone cord-type tether, not a ring but on the up side it is tiny and there is no cap to lose: the nub that looks like a hasp in the picture is slider used to extend either the full-size USB plug or the Micro version and despite being very loose-feeling the cover stays put in use and the drive is easy to fit to both a routine laptop and mobile phone.(The micro plug extends a little further than usual so it works even if the phone is fitted into a bump-proof case.) As an alternative to using a cable to micro-manage files this is a dream: I just bulk copy a structure to the drive then hunt and peck using a couple of Android Store products:Total Commander; and Paragon UMS add-on for Total Commander - other equivalent products may also be available but I happen to like 'em - so I now have access to everything I need without having to lug a laptop around.)Highly recommended with a single proviso: this is NOT a bomb-proof housing:If hung off a huge bunch of keys, bottle openers, folding pliers etc I predict one day when you look for it, it will be gone. But if attached to a reasonably compact EDC carry like a Victorinox Manager or similar that lives in your pocket it will remain in one piece and be working as well for you as it has for me, without a hitch since purchased and to be honest, somewhat thrashed in the process of (re)organising a LOT of files.PS An area of concern for me with metal-cased devices is the significant heat generated by USB3 transfers, particularly when the device is ultra-small. The slightly larger size coupled with the loose-fitting outer sleeve already mentioned means no more singed fingers...

Good little gizmo does what it says on the tin!Could benefit from a "loop" so that it can go on a key chain.If I'm being hyper-critical, it is a little like a kid's kinder surprise toy in the build!I'm not sure what the metal ring is for?I suggest checking out the opposition to ensure you are buying the correct adaptor sockets.Good enough value for me.