Review on UGREEN SD Card Reader USB 3.0: High-Speed CF Memory Card Adapter for UHS-I SDXC SDHC Micro SD, Read 4 Cards Simultaneously, Windows Mac OS Linux Compatible by Jason Rodman

This is my third Ugreen SD card reader that I have bought. None of them can exceed a read or write speed of 100MB/s when connected to this device, which is far below the advertised USB 3.0 5Gb/s speed. In fact, none of the three Ugreen reader models I bought can handle speeds over 100MB/s. Another disadvantage of this reader is that it is quite large. It looks like a full-size e-reader in the photo, but it's actually about three times the size of a regular USB drive.