I went to download Samsung Smart Switch and noticed they are offering a free Samsung USB host cable.
Just go to the Samsung Smart Switch website and select Android or iPhone as your device, then under that will be a link to order a free USB cable.
It does ask for your IMEI number so I'm guessing it's for Samsung device owners only.
Sorry if this has been posted already!
I received mine yesterday… It's different to the one that came with my S7 Edge