SanDisk Ultra 16GB USB 3.0 OTG Flash Drive with Micro USB Connector for Android Mobile Devices- SDDD2-016G-G46

SPEED: MUCH Faster than I anticipated considering they refuse to list the write speed anywhere. (130 MB/s Read // 45ish MB/s write)I looked all over the internet to try to find out how fast this drive writes because it isn't listed anywhere. So here you go, it seems to max out around 48 MB/s but you end up averaging around 35-42 MB/s depending on the file type. That's really fast for such a tiny little drive. It's even significantly faster than my huge Corsair Flash Voyager Slider 32GB USB 3.0 drive which writes at around 32-35 MB/s.The read speeds are a very fast 130 MB/s just as advertised.I loaded a 1080p video onto from my Windows 8.1 laptop and plugged it into my phone. I was able to stream the video directly off the USB stick without any glitching, slowing, or stuttering. Transferring the file to my phone also did not take very long.Size and Design: TINY.It's not as small as the Kingston 64 GB Data Traveler Micro Duo (link below) but it is 2-3 times faster, and has a more protective design. http://www.amazon.com/gp/product/B00LIXJ54K/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1The build seems pretty good. The slider works well and it locks into place to prevent the connectors from going back in while you use it, and they lock into the "protected" position pretty well, which should help prevent the pins from getting bent or damaged in your pocket.The connectors also stick out far, which is GREAT, because it makes it easy to stick this thing into your phone even if you have a big bulky case that makes the port hard to reach.The little silver handle part also slides easily onto your keychain, but I think it may be plastic (I could be wrong), which may not hold up in the long run. I'll update this review if it breaks because many of these USB sticks have cheap keychain attachment sections that break over time. I'm hoping it's metal (the Kingston one is metal).Functionality: It works!I tested it with multiple different file types on my Windows 8.1 laptop as well as on my Samsung Galaxy S5 Android smartphone and it worked great and easily with no hassle and no installation. Plug and play.Overall Conclusion: Fantastic and definitely recommend!$36 bucks for a 64 GB USB 3.0 that is tiny, very fast, and also easily connects to my Android smartphone (Samsung Galaxy S5). Can't beat it.Caveat (If you don't care much about write speeds, the Kingston 64 GB Data Traveler Micro Duo costs almost half as much (at around $22) and reads just as fast. If you don't like waiting around for files to transfer, (and if you're getting a 64 GB usb stick, you probably intend to make some big transfers) you're going to be happy with this.Keep in mind, there are much faster USB 3.0 flash drives available, but they tend to be much bigger, and don't have the dual OTG functionality.

I'm using this Flash Drive with my Kindle Fire HD 6 4th Generation with 8GB memory and it works great. Works exactly the same as the Amazon USB Adapter cable for Fire Tablets (4th Generation). This adapter allows me to view movies, photos and listen to music all offline and without using the internal memory on my Fire. It's a USB 3.0, so file transfers are very fast from my computer USB 3.0 to this drive.On the Kindle Fire I'm using the ES Explorer app and VidOn Player HD app to access movies, photos and mp3 files. To access the USB flash drive I open the ES Explorer app then tap on the three bars in the upper left corner of the screen. Tap on the local tab and select the usbotg tab. This opens to show the folders on the USB flash drive (I use Video, Pictures and Music folders).Slider on the flash drive seemed a bit ackward at first but I realized I needed to press down on the button to make slide smoothly.The Kindle Fire HD 6 4th Generation recognizes this drive as an otgusb device. Having used both the Amazon USB Adaper cable and this SanDisk drive I must say I like this mini USB flash drive better since it's overall size is smaller and it's easier to handle without the cable.

My only issue with this product is the construction is a bit flimsy. Very convenient though, I carry on my keychain and use without an adapter to plug into my Samsung Galaxy S7 Edge phone.MY RATING SYSTEM:I try to stick with the same criteria and system when reviewing products and here is how it breaks down…FIVE STARS: Great Product, would feel completely confident in recommending to others and consider the product to be a great overall value with no obvious faults.FOUR STARS: Still a very good product, I consider it to be overall a good satisfying purchase and can still recommend it in good faith but there is one small aspect about the product keeping it from a perfect score.THREE STARS: A good product but not a great one, it operates and appears as advertised but more than one aspect of the item is undesirable. This is an item I would use but probably consider an alternative option.TWO STARS: Product is definitely lacking in quality and or the way it operates. Would not recommend it to others and would seek and alternative elsewhere. It maybe just barely does what it is advertised to do but is probably not worth the money and there are many negative factors about it.ONE STAR: No two ways about it, this is a bad product and I would not recommend anybody purchase it.

This is a great product for android users. I personally keep one on my key chain that I have with me at all times. This is especially useful for all of those Samsung Galaxy S6 users out there (myself included) where your phone does not have micro SD or any other place to offload photos and videos. I personally shoot a lot of video and take many photos on my phone. Even though I have a 64GB phone, I would keep finding myself low on space becasue of how much space 4K (or my current favorite for my phone 1080p 60fps) take up. This drive is quick enough and does the job. My minor gripes with the drive are that if you want to put this onto a key chain, you will need to get a tine keyring so that the drive lies flush to the keys. I used mine for a while without one, but I bought a second one and then I really needed the small rings. Also, when in use with a computer, the drive does get hot, but you will not burn yourself on it. I also like that while it does have an app, you don't have to use it, and I have not even bothered downloading it, because the built in file manager is easy enough to use with this drive.Overall, I am very happy with my purchase and I highly recommend this to potential buyers. This is truly an awesome product that actually can save you in a pinch when you are trying to download an app or capture a special moment and your phone complains about not having enough storage.