IPAD 3RD GEN PHOTOS AND VID XFER

Not digging the iPad pro third gen. Heres why.....\\

I want to transfer existing photos and videos from my iMac to my new iPad pro. I have tried SD, and iTunes. Seems iTunes has changed the way to do it since my last iPad 6 years ago, and now with everything I am doing, i cannot get my files to go over to the iPad, making it a useless device for me.

Q how can I get my photos and videos over to the iPad pro third generation quickly and easily? Its a a lot of files, and I can't seem to figure this out.