I have bought Transcend TS32GUSDHC10E microSD memory card with SD adapter primarily for my Canon SX 220 HS digital camera because my previous 8GB card for Full HD video recordings only has a capacity for about 30 minutes films. Because otherwise (apart from longer films) is sufficient also the previous 8GB SD card, it should be a micro-SD specially so that I can use in the smartphone. Did they get delivered today and tried out directly, it works einwanfrei in the camera and also offers even significantly higher Geschindigkeiten than / s write performance calls for the Class 10 with min. 10 MB. So I got with CrystalDiskMark 3.0 x64 on the PC (memory card in the card reader), a read performance of about 20.1 MB / s and a write performance of about 17.0 MB / s achieved with sequential read / write, which are super values , For about 20 MB / s read I go also from a limitation by the card reader, so there's a lot more likely to be in it, the slight difference in the read / write performance is otherwise unable to explain, since SD flash memory card in the typically have a greater difference between read and write rate. The good write rate of 17 MB / s but it should be quite accurate, so you can orient it well. As the price (about 21) is also good, so I can fully recommend the product and give 5 star (for life but of course I can not say).