SanDisk Extreme 32GB UHS-I/U3 Micro SDHC Memory Card Up To 60MB/s Read With Adapte-SDSDQXN-032G-G46A [Older Version]

When I got my GoPro Hero4, I knew I had to get the best microSD card there was! I was looking to film and take photos. The capacity and speed of this memory card served it's purpose and I'm glad I went with the 64GB. If you want fast extra storage for you Android devices such as the Note 4, HTC One M9, or even tablets, this is the fastest you can get for a great price! My speed test was 59.79 Read and 40.02 Write! Excellent quality and I've owned this product for over 1 year. The read/write speed is still the same! Will work w/ 99% of Android devices, tablets, Microsoft Surface products, and all GoPro Hero products!Now to compare the competitor field:In testing, the SanDisk Extreme performed on par for what was quoted, In the random large-block workload, the Extreme Series 64GB had a slight drop-off, but it still retained its top-in-class performance. Additionally, we compared these figures to the performance of its higher-tier sibling, the Extreme Pro microSDXC, SanDisk's other top-of-the-line microSD card, as well as the Samsung microSDHC Plus and the lower-class Toshiba microSD card. Unsurprisingly, the Extreme Plus Series out-performed its competition, though cards like Samsung is nearly $20 cheaper at roughly $40 for the 64GB model. That extra $20 dollars goes towards a significant boost in performance, however, so it is up to the consumer to decide whether or not they need these considerable gains for their high-end smartphones, cameras, or tablets. With its performance, reliability, and SanDisk's trademark life-time warranty, I think the Extreme is a worthwhile purchase for enthusiasts. This product is B-23 approved!

I was looking for the best card I can get for my mobile phone and reached the conclusion that is this one, I've been using it for over a month and it lives up to its expectations. If you're looking for a card yourself I wrote my findings below to help you choose.There are many classes of cards. The newest are uhs-I and uhs-II. The latter is faster but only if your device is compatible with it, otherwise it won't play nice with your device. If you have a fairly new device and you're not sure which one you need, it's most likely a uhs-I device, as uhs-II is reserved only for applications where that extra speed is absolutely necessary.So you've determined your device is uhs-I compatible, Which card to choose?Well, there's a rating system, and the card will either be rated U1 or U3, this rating determines the minimum write speed of your memory card. U1 meaning it's rated for 10MB/s and U3 is 30MB/s.What this means is that if you're using a consumer electronic device, then the fastest guaranteed speed you will get from a card is from one rated as uhs-I/U3, like this one.This card also says that it has a maximum write speed of 40MB/s and read speed of 60MB/s, but the maximum values are not always attainable and there are many variables. That's why I chose this card over others that promised faster performance, as there is no guarantee you will be getting that kind of performance from them.

I want to begin using my expensive cell phone for videos sometimes.I began thinking how much we pay for this amazing technology (our phones), and only use 10% of its abilities.I have 2 grandsons who are growing up too fast, and I thought, "how about when it is grandpas time to be called to the next life, what a wonderful gift I can give/leave them, but videos of some of my life."Events. Christmas with me. Holidays. Some of me at my job (they'll be curious anyway), and they can show them to their children.Me just working on my car, or fishing with them or my friends... Anything.And I wanted an sd card that will not lag (jumpy, pixelled, etc), with the video function of my phone.And this card does this perfectly.I now have video access with me any time I want, and allowed my phone to use its video abilities as much as it can.Not a thousand dollar camcorder. Its a phone. But I'll get a lot of spur of the moment videos for them, but its with me at all times.They'll have hours and hours of videos to enjoy, and instead of trying to tell their children down the road about grandpa, they can let my videos show them grandpa.

SD card - that's all

Have been using this for years now with zero issues.

I have not put this new card through any performance tests. But I have found a rather unusual characteristic. The card (in its adapter/sleeve) works in my Panasonic Lumix FZ70 just as I would expect. And when plugged into my HP PC's SD card slot, everything also functions normally. But when I plug it into my USB adapter for SD cards and plug that into the HP's USB slot, I must change the protection switch to the locked/write-protected position or the PC does not recognize its presence. And in this position (supposedly locked) my PC can do anything to the files on the SD card (delete them). I believe that this is a funky quality of the micro-SD adapter/sleeve included with the card. I put the micro-SD card in a different adapter/sleeve and it all works normally with my USB adapter (i.e. I don't have to change the switch to the locked position). This is very odd, but having figured it out, I can work with it. I am writing a review so that if anyone else should encounter this, they can figure it out much more quickly than I did.