We have a 64GB SDXC UHS-I for about 26euro !!! So as I see it at the time an unbeatable price.
So far, I just grabbed SanDisk but at the price I thought .... Give it a whirl!
So test card.
The test system: the card reader is connected to the USB 3 port on a Asus P8P67 Rev.3.1 Mother board that by i72600k with 8GB Ram is fired a Kingston Media Reader FCR-HS3.
Test Tool: H2testw
Letter: 38Mbyte / s for the 60GB available on the card needed 26min tool.
Read: 60MByte / s this the tool needed 16min well.
Here was good to see that the card reaches full capacity until at larger files. as would be the case with FullHD video. Seem to remember that this is but with SDXC card probably is common, which is why many stick to SDHC cards with smaller capacity.
So I then tested the card again with smaller files. (Write / read each Mbyt / s)
1 Mb 12.2 / 47.9
3 Mb 10.1 / 52.7
5 Mb 16.5 / 54.7
10 Mb 12.5 / 55.1
this can of course always vary and should serve you just as approximately guideline.
Conclusion: 64GB SDXC Class 10 that their request more than met: at the UHS-I specification I'm not so sure. But she always writes its 10 Mbyte / s and more, which should be more than well for most devices.
Reading, apart from the small 1 MB file is always over 50 Mbyt / s so large amounts of data are nimble shoveled onto the computer and all for not even 30 Euro !!!
For me strong buy recommendation !!!