I’m seeing the word Magnetic on it , so Magsafe? But then I see the testing was done with the iPhone 11?
On the underside I see 5W / 15W written, which is different than in the FCC posting, to get 15W Qi out you need at least 18W in which makes sense with the input of 9V 2A. So your Anker Nano charger would work for this.
I’d say on balance this looks like a 15W Anker Magsafe iPhone 12 charger.