Review on 📷 Portable USB Camera Adapter with Charging Port and OTG Support for iPhone, iPad - Plug and Play, Compatible with Card Reader by Doug Hook

I bought a couple of these controllers because I have a lot of MIDI controllers and needed extra adapters to connect them to iPads and iPhones. It's great for that. Connect the USB end to the controller cable, connect the Lightning end to your iOS device, and the keyboard is instantly recognized and works just like Apple's "Camera Connection Kit". If you're looking for a way to connect a MIDI keyboard to an iPhone or iPad, this is out of the box.