This thing works great. We have used it with our iphone 8 plus, and iphone 6's and iphone 8's with no issues. It will read my Olympus TG-3 card, the gopro 5 (with SD card adapter) the DCI drone (with SD card adapter), and my Canon DSLR. It is super quick!In the past, we have used an Eye-Fi wifi SD card. This works, but it is SLOW. The olympus TG-3 also has built in wifi for transfer - but it too is SLOW.When traveling, this card reader is hands-down the fastest way to transfer your pictures to your phone. It requires no software. Plug it in and a menu will appear so you can transfer the images and video. Then it will prompt you if you want to keep or delete the originals on the card. And, with the iphone 8 plus, it appears to keep the same file nameso when you try to consolidate all your trip photos later on, you don't wind up with multiples because iphone created it's own file name.