Because there are so many fake and counterfeit SD cards for sale everywhere, I check each and every card I buy to insure it is genuine and it is the size and speed claimed. I can happily report the microSD card from this vendor is genuine and of the size and speed advertized. To check the SD card, I use two free, simple-to-run apps: SD Insight, and h2testw. SD Insight is an Android app you download from the Play Store and run on your cell phone or tablet. It will check the header on the SD card for the manufacturer's logo and display it -- no logo means it isn't genuine. Although SD Insight reports a size, it is just listing the information that is embedded in the header, which can be rigged to show a greater than actual size -- it doesn't actually test for size.. So we can't rely on SD Insight for size verification. H2testw is a small Windows software program you run on your PC, There is no Apple version. You can download it for free from the original German developer here: (...) It has an English toggle, so you don't need to speak German. H2testw actually writes a test file to each sector of the SD card, then attempts to read them. If it can't read them, then that infers a phantom (nonexistent) sector. H2testw has become the gold standard for verifying SD size, and has actually been used in legal proceedings, You have been warned to be wary, and now you armed with verification tools -- use them.

A better comparison would have been the Samsung Pro line of SD cards to the SanDisk Exreme but I was curious how a more budget oriented card would do compared to a card that is known to be one of the fastest. There is a newer version of the SanDisk Extreme out that is the A2 so if you do buy get the newer one. As you can see both tests are pretty similar in it's results. The budget EVO Plus has roughly 20MB/s slower write rate compared to the more expensive Extreme but for read speeds it's a pretty negligible difference. For action cameras which is constant write, I would buy the Extreme and for the EVO Plus I would use in something that doesn't have much write jobs such as storage for a phone or a drive for a Raspberry Pi. That's not to say that the EVO Plus wouldn't work in an action camera. The new GoPro 7 Black shoots 4K at a bitrate of 78Mbps which is about 9.75 MB/s so even with the EVO Plus at 68MB/s there shouldn't be a problem whatsoever but having a faster card can only help.

I've gone through a computer crash and lost my hard drive data. It never occurred to me that my phone might crash and I'd lose my data, especially my photos. So, having gotten a new phone, I decided to get a memory card for it as my backup. (I also bought a backup drive for all my electronics. I don't plan to get burned again.) It turns out that this drive makes it easy to transfer files, especially my music, from my computer to the phone. What I didn't expect is using this to transfer a video, too. The video is a little over 4 gigs, and I had nothing at hand to handle the transfer, but 64 gigs of memory card certainly took care of that! The card is more valuable than I thought. Also, the price at Best Buy was very competitive, so life is good. I recommend don't short yourself on memory, because you never know when it will come in handy. And, since the teenie-tiny card (how do they do that???) comes with a carrier, it is super useful. Many thumbs up!

Samsung Evo+ micro SDXC 64GB it's a data of all species read/write and it does pretty mutch what it says HD video,Data files ,Music,Games and what ever you through at it, all data is very safe on magnet fields no change whatsoever ,water resistant just ler it dry for a bit and it's ready to go again, very resistente to heat ,got a couple working on my cars as video surveillance and never had a problem and summer In Jersey is pretty brutal special inside a car ,in my opinion its a card excellent for the regular guy ,sports of any kind and the so called professional no doubt about it ,price is still a little high but if you look around you will find some great deals ,all together is a card you will never regret buying even at full price because it won't let you down.

So, in the store, the employee pointed me to a totally different SD card to use for my Samsung Galaxy phone but then I saw these that said they were made especially for Samsung phones, so I grabbed this one. First day, it worked fine and I transferred a lot of data, and photos to the card. I was amazed at the speed of thetransfers. Faster than I could blink actually and that was like 30G's of stuff. This supposedly also does 4k. The 2nd day however, I woke up to a notification that said SD card was corrupt. I know my data was all good, like no malware or viruses, so I'm completely puzzled why this card failed. It was right out of the box. So, lost everything I had moved.

I just bought a new HP Pavilion with only 126GB storage, I needed something quick to get my music and videos for easy access. I purchased the Samsung 64 GB Memory Card and the speed that I have now is incredible! I had a larger 128GB memory card that was slow to access. The 64, while half the storage capacity seems to be twice as fast in getting to those videos that I need. Fast to access means my computer remains fast and that's why we pay the big bucks to turn on the computer and no lag time start up. This 64GB will enable you to get the speed you need for start-up and then to easy access to find those items one does not need on the main drive.

We purchased an Amazon Fire that only had 32GB, because it was an amazing sale. The newer model with more GB's was not available at the store that day, and we really wanted to leave with one in hand. We were able to purchase the Samsung EVO Plus 64GB memory card. Now, we have an awesome amount of storage and we didn't need to wait for the other model to be delivered. We are sooo pleased with this purchase. The Tablet works beautifully!!! And, as always , we purchased the GEEK SQUAD Protection Plan. They're amazing!!! They ARE BETTER than the service offered from the manufactures.

I got a good deal on this 64 GB SD card a while back, and it is rated to be usable for 4K video recording at 100 MBPS. What I like most about it in comparison to similar cards that also have the 100 MBPS rating is that this one has the "3" rating, as opposed to some of the cheaper ones by other brands that only have the "1" rating. For somebody who doesn't understand the difference between a "1" and "3" rating with all other things equal (such as MBPS speed), this item is essentially guaranteed to be usable for 4K video recording. Again, I got a really good deal on it in the store, so if you keep your eye on these and catch them when they're lower, that can be pretty nice!