Review on 📷 Gigastone 8GB 2-Pack Micro SD Card, Full HD Video, Surveillance Security Camera Drone Professional, 80MB/s Micro SDHC Class 10 for improved SEO by Carlos Long

I have had a Gigastone 4K Game Pro (red) for over 2 years now and it still works in my DVR, no problem. I just received this black version and decided to use the same ATTO disk test and as you can see in the attached image the write speed of this disk is 40MB/s and the read speed is over 90MB/s! That's great! Strange, with the red version I get 20MB/s write and 150MB/s read!?!One of these cards goes to the security camera, the other one will be the backup. But here's the "bad": I tested the second card and to my surprise the speed is 28MB/s W and 42MB/s R (second picture). I repeated both tests a few times, also changed the card reader (both USB 3), but the test results were the same, one card is fast, the other not very. So good luck to you!