You get what you pay for! These are uptp SD specs, YES. It's fast, NO. But for six dollars and small change with a card reader, he gets 5 stars from me! In case you're wondering, I got this to expand my Fire 7 [2015] so you don't need crazy bandwidth.
Kingston microSDXC 64GB Class 10, V10, A1, UHS-I U1, R 100MB/s Memory Card, SD Adapter, 1 pc, Black
45 Review
Memory card Samsung microSDXC 256 GB Class 10, V30, A2, UHS-I U3, R 130 MB/s, adapter to SD
50 Review
32GB High-Speed Micro SDHC Card - Class 10 UHS-I Compatible Memory Card for SD Devices
63 Review
Smartphone ZTE Blade V10 Vita 2/32 GB, Dual nano SIM, graphite black
50 Review