Description of EATON TRAFCI20W Tamper Resistant Receptacle
Protects against arc faults in wiring resulting from damaged insulation and other causes that can lead to electrical fires. Large visual LED indicator light gives quick notification of tripped or 'end-of-life' condition. Afci receptacles protect from series and parallel arcs downstream.
For any code, you can't serialize with AFCI like you can with GFCI, so the AFCI evaluation isn't as useful as I was hoping . Just spend the money on an AFCI/GFCI switch and use regular outlets.