USB hub that will keep ipad charged while using Audio/MIDI over USB?

[TiffanyCollins]

I'm looking for something hopefully under $50 that will keep my ipad charged while I use it in my studio. I cannot plug the ipad directly into my mac pro, as the computer is too far away (reducing computer sound while recording) and my USB hub, while allowing for the ipad to transfer midi and audio via USB, does not charge the ipad while in use, so I run out of battery very quickly.

Anyone know of any USB hubs that will keep an ipad charged (or at current battery levels) while using audio & midi over USB? The only ones I've found that say they charge an ipad only do so when the hub is not transferring data and/or they have charge only ports, so it wont work for my needs.

edit: I'm running a 2009 Mac Pro and an iPad Pro 9.7 running iOS 11

[mindnoise]

This will keep your iPad happy: lightning-to-usb-3-camera-adapter with power

https://www.apple.com/shop/product/MK0W ... r?fnode=91

[thecontrolcentre]

n/m