Review on Rocketek USB Memory Card Reader with SDHC/SDXC/SD & Micro SD Card Adapter, CAC Card Reader for SIM, MS, M2, MMC RS & 4.0 - Windows, Linux/Unix, Mac OS X Compatible by Daniel Espinoza

NOTE. This review is for readers with a short USB-C cable. I was concerned whether the OTG implementation in my phone is compatible, it worked perfectly for the first time. The short cable removes power from the phone's USB-C port. If you're using it for a camera memory card, just use your favorite file manager app and either copy or move your photos to wherever you want your phone to be. I use this to quickly and easily transfer photos from my trail cameras to my phone. It's also easy to back up files from your phone's internal or external storage if you have limited bandwidth or prefer local backup. Footage from multiple wildlife cameras. It's easy to carry and has worked great every time.