These Micro-SDHC card is specified for Class 10, which means that the read rate must be at least 10 MB / s. The addition UHS-I, however, promises much higher data transfer rates, which is also the case here. Under laboratory conditions to a write rate of as specified 48 MB / s in there. From 10 MB / s write rate per second the card is practically the most mobile devices thwarted. At the notebook I have with this Samsung Evo memory card using the included adapter the following values measured with CrystalDiskMark: Read: 31.4 MB / s Writing: 15.9 MB / s While that is a synthetic test, which is of limited significance in practice, however, to Comparison with other cards well suited. The values of this map are under the same test conditions almost identical to the 16GB UHS-I of SanDisk (read 31.8 MB / s, writing 15.6 MB / s). Serve with the also identical Amazon Price (Stand 01/2015 approx 11.00).
The card works with or without an adapter on all my mobile devices, whether camera, Smartphone or laptop.
The processing of the Evo is impeccable. There are the card surcharge of about 1.00 and with adapters for larger SD slots. I can fully recommend any case the memory card.