Review on EATOP USB 3.0 Flash Drive 512GB Dark Gray - Compatible with iPhone, Android, Computers - External Memory Stick, Thumb Drive, Photo Stick by Robert Robertson

I spent weeks working on a family photo archive for myself and three brothers. All four copied well and I was happy with how it all worked. It was the night before I was supposed to distribute them, I checked again and two out of four said the drive was ejected or not formatted when connected to the phone. I've gone through the whole process of deleting, reformatting and overwriting many times but when I connect to the phone I get the same message. My archive is still available on the computer via USB, but that's not why I chose this drive.