Order at an attractive price I was afraid to counterfeiting but what is especially slow. I test under hd tune sequential read write 17275 36402 kbps kbps. under win 7 read 2 films 1.36gb 40.4 mb to 36 mb down. write full file folder etc. 8.5 mb 10 gb data down to see 2.5 mb, but quickly spread and 9.5 mb 10 mb. here I put not know too micro sd but his pourai be better but that's okay I think.