Review on 📷 KEXIN 8GB Micro SD Card 5 Pack - Class 10, C10, U1 - MicroSDHC UHS-I Memory Cards by Jonathan Olson

This card was advertised as a U1 SD card (10MB/s write) but all three in my pack were tested at over 40MB/s write speeds ( tested at 100MB sequential write with Crystaldiskmark ), which puts it in the U3 category. The reading speed exceeded 80 MB/s. This was probably one of the few times I've bought an inexpensive microSD card that actually turned out better than advertised. Results may vary depending on the item purchased.