Samsung 128GB EVO Select microSDXC Memory Card

Great card for the price and it is fast and is authentic. You would not believe how often these types of cards are counterfeit! I have gotten 2 fakes that did not work and both were sellers on Amazon! The worst part was one was purchased for use on vacation. Halfway through the vacation the memory card just died! It was not even recognized by the phone or the digital camera. I contacted the manufacturer via their website and they confirmed it was a counterfeit card! I was blown away! I lost hundreds of pictures and videos! Amazon went above and beyond when I contacted them, they actually replaced the card with a new one from a trusted seller and had it overnighted to our hotel! They refunded the original purchase price and sent the new one out at no cost!Now when I need a new card I research them a lot better!This card is genuine and it works great and is fast!You just want to make sure your phone or camera can use a card this size. Some phones won't recognize a card over 64gb or 32gb etc. So if you use a card over the maximum size listed, it may not work at all or may only use half the card!

Just put this in my new Motorola Moto X Pure Edition (32GB) phone. I bought the 128GB Samsung microSD card for extra memory storage. Once I figured out how to insert the microSD card into the phone's slot I was good. I had to "format" the SD card and then a pop-up came up...saying I should insert a "faster" card. Huh? Did I buy the wrong card/speed for this new phone? I want 128GB memory capacity...blazing read/write speed would be great too...but, $$$ talks. Anyway, shot some 4K video on the new phone...which saves/writes to the SD card...no issues. Hooked up a data cable and synced with my laptop...found the 4K video file, no issues. Transferred it to my computer...went pretty darn fast (IMO). So, is the higher speed microSD card really worth more than TWICE the money? Can't justify it. Love the new phone...$350 (Republic Wireless) and $20 (1GB data) plan. And, I rollover my data and they pro-rate the unused data on the next bill (bills are usually $13/month. Win. I also own three Samsung Evo SSDs...no issues! Great stuff.

I have had this card for over a year, and I am thoroughly satisfied. It has been on 4 different cellphones, has been filled to the brim and emptied, and has never failed me, given me an error, lost any data, or really given me any issue. It is durable, beautifully designed, its read and write speed do not disappoint (used it for filming UHD video). And its price is great. Really my top recommendation if you are looking to expand your storage.

There have been too many times I have ordered SD cards just to find out they're fraudulent. More than 10 times between my husband and myself, we have ordered and tried to load them up but they kept failing. We finally found a program to test the cards and all the cards would say something like 30g good out of 128g or something similar. I was so hesitant to buy yet another fake SD card but tried it anyway and I'm so glad I did as this card is the real deal. It passed the program test and had no problems transferring and holding data. I ended up ordering another one for my husband and he has had no problems either. It's so nice to find a reputable SD card seller for a good price. I definitely recommend this seller and this card!

The package of the Samsung 128 GB say that the card is made in Korea and the adapter is made in China. Definitely NOT made in Philippines like one of the "most useful" review states here. Keep in mind that I ordered it when it was officially sold by Amazon. Not by a third-party seller.Still haven't test the speed or reliability of this thing yet since I only got it couple days ago. But I got a good feeling that it is a high-quality product since it was made in Korea.

As far as i can tell it was good for my cell phone which i lost.

Update 8/25/2016: Added the 256GB card to the comparison. It was much faster write speed and met the 95 MB/s read and 90MB/s write claims!I tested the 64GB and 128GB cards. Both cards exceeded the advertised speeds (80MB/s read and 20MB/s write). The 64GB card provided higher read and write speeds compared with the 128GB card. The 64GB card showed very high 512K random read and write speeds, the random write speeds exceeded the sequential writes.I tested in several different USB 3.0 card readers, the highest benchmarks:EVO Select 64GBSequential Read : 97.361 MB/sSequential Write : 25.626 MB/sRandom Read 512KB : 88.232 MB/sRandom Write 512KB : 64.917 MB/sRandom Read 4KB (QD=1) : 9.424 MB/s [ 2300.8 IOPS]Random Write 4KB (QD=1) : 1.717 MB/s [ 419.2 IOPS]Random Read 4KB (QD=32) : 10.423 MB/s [ 2544.8 IOPS]Random Write 4KB (QD=32) : 1.445 MB/s [ 352.8 IOPS]EVO Select 128GBSequential Read : 82.839 MB/sSequential Write : 22.677 MB/sRandom Read 512KB : 72.126 MB/sRandom Write 512KB : 5.837 MB/sRandom Read 4KB (QD=1) : 4.969 MB/s [ 1213.1 IOPS]Random Write 4KB (QD=1) : 0.898 MB/s [ 219.3 IOPS]Random Read 4KB (QD=32) : 5.396 MB/s [ 1317.3 IOPS]Random Write 4KB (QD=32) : 0.122 MB/s [ 29.8 IOPS]EVO Select 256GBSequential Read : 95.664 MB/sSequential Write : 89.637 MB/sRandom Read 512KB : 82.579 MB/sRandom Write 512KB : 54.243 MB/sRandom Read 4KB (QD=1) : 5.931 MB/s [ 1448.1 IOPS]Random Write 4KB (QD=1) : 2.820 MB/s [ 688.4 IOPS]Random Read 4KB (QD=32) : 8.474 MB/s [ 2068.8 IOPS]Random Write 4KB (QD=32) : 3.596 MB/s [ 878.0 IOPS]

This works great in phones and cameras. It has enough storage space that I don't have to worry about it filling up too quick.