Please don’t use cheap card reader to test Micro SD card, speed of Micro SD card will be reduced by low quality card reader
SD memory card speed is greatly affected by card reader, USB port etc. Low quality device will 100% slow down card speed.
Support UHS-I ultra high-speed interface
Real performance test, please refer to the picture, tested under UHS-I card reader in a USB2.0 Port
Professional MicroSD Card for Full HD video recording and playback, class 10 high speed memory card for smartphones, android pad, GPS, video
Package:1 pcs MicroSD card with adapter