Can anyone tell me the speed test result for “Sandisk mobile ultra microSDXC 64GB class 10”. I think I get a fake card, the result on CrystalDiskMark read is 14.xxMB and write is 10.xxMB. It is normal?
I had given the card id of my Sandisk Class 10, 64Gb micro sd card to SanDisk for verification. They confirmed I got a geniue one. But after using the ATTO benchmark software to test its performance, the average write/read speed is only reached 6.35 Mb/s and 18.99Mb/s respectively.
Have anyone carried out the similar test too?
what kind of card reader are you using? Keep in mind these are UHS-I cards so to see the full speed you will need a reader that is UHS-I compatible.
I has inserted my card into a micro usb 2.0 stick and tested with a usb 3.0 input windows 8 PC. The Sandisk technical support staff has sent me his test result. The ultra micro SDXC 64Gb Class 10 has only reached a top speed of near 21mb/s with a better test set up as follows:
Thank you again for emailing SanDisk Technical Support. It is our goal to make sure you have all the resources you need to get the most from your product. I feel very sorry for my late reply on your case.I did an experiment yesterday evening that i connected a brand-new Mobile Ultra Micro SDXC 64GB card to a USB 3.0 port by using a SD-289,the most advanced card reader with USB 3.0 interface in SanDisk.The test result is 20 plus MB/s.Please see attachmen"