At least I got the backplate with the dongle storage.
I think I missed this perk, I'm pretty sure mine doesn't have it? I'll need to look again. Either way, the dongle vanished ages ago, so I guess it's moot...
It didn't ship with my controller, I had to order it extra. I looked it up and apparently they started shipping the backplate standard with the second run of controllers. Hopefully the new controller also uses a dongle, because good god do I hate Bluetooth. Being able to plug the damn thing in and have it work on any machine instead of faffing about with BT unpairing and repairing like I do with my Xbox controller is so nice.