For once, a real card that works, I ordered 4 in twice. All tested sd card test on 64 go. The average speed for all 64 go is 13 mb 17 mb writing and reading which is not bad for the price. But above the test writing, validation and reading on 64 go (more than 3 hours test goes smoothly. Very fast seller, ordered Saturday, 05/10 at night, 12/05 dispatched, received on 14/05, plus a small gift with each card (screen cleaning tissues). A buy eyes closed. I recommend.