Review on 4 in 1 Portable SD Card Reader for iPhone, iPad, Android, Mac, Computer, and Camera - 📱 Micro SD Card Reader Trail Camera Viewer - Memory Card Adapter Compatible with SD and TF Cards - White by Elijah Pope

Ideal for taking photos from your camera and transferring them to your phone for editing and sharing. I have a Nikon D7100 with a WMU plug-in wireless adapter that only works 10% of the time. This device only works with a Lightning connection to an Iphone. I have a Mophie battery/case with a mini USB port. The phone will not read from this device when connected to it. You have to take your phone out of the case to use it. I even tried adapters (Lightning In/Mini USB Out) but they don't work. Aside from this workaround, I now carry it with me whenever I use my camera.