Con Sumer
Formatted card with SDFormatter 3.1PC used to test this card Sony vaio C2D sz645 + vaio memory card adapter VGP-MCA20A.h2testw 1.4 test results:Test finished without errors.Writing speed: 6.94 MByte/sReading speed: 12.5 MByte/sH2testw v1.4Android phone Samsung Exhibit 2SDTools test result:9.3MB/s write21.3MB/s readAlso tested write speed with an older model Sandisk usb 2.0 sd card reader and cheap generic unbranded reader, get about same results. I don't have any devices that can handle UHS-1 "ultra" speed of this card. Seems like a class 6 card or none of my gadgets can handle 10MB/s write speed or it's a class 6 card sold as class 10.