Purchased in March 2013 to replace SanDisk Ultra 32GB microSDHC Class 10 UHS-I SDSDQU-032G-U46A died after three months, I am very satisfied with this memory card. Absolutely no problem after almost 2 years of use. On my Samsung tablet it has done its job. Playback of video files any format is done smoothly even for file 2 or 3 GB. Much faster than the Sandisk it is just limited speed transfers copy / paste files from the tablet and USB2 cable when I do the operation. A perfect complement Transcend TS-RDF5K card reader SD / MicroSD USB 3.0 Black who by his USB3 interface allows you to enjoy the best rates of this Samsung microSDHC. I just bought another card like this for my new Smartphone and chose its current successor Samsung 32GB MicroSDHC Memory Card Pro UHS-I Grade 1 Class 10 with SD adptateur. These Samsung Pro have a higher rate but at least no surprises.