You could be right, I cannot find enough info on this one in their specs
Yeah, The CU/AL receptacles are usually Cadmium plated Aluminum.....
I dislike Leviton..... Other things I've had happen is that the screws applying the pressure on the wires strip much too easily, and you can't get sufficient pressure on an aluminum wire so you are forced to use copper only wiring if you are in a spot where the receptacle is not easily changed out.... But usually I throw it out and put in a Hubbell.
One thing with these hard working car charging outlets.... Always use a METAL box, and build it out with extender boxes AWAY from anything combustible, such as wood studs, stiles or rails. Might not look the prettiest, but with a 40 ampere load all night at least you can sleep if the thing starts smoking.
You might say "THE NEC DOESN'T REQUIRE THIS so I'm not doing this".... That is true.
It is also true that in the 1960's and 1970's many homes that had a "FULL HOUSE POWER - ADEQUATE WIRING CERTIFIED !!" on the mail box that were almost 100% aluminum wiring other than the door bell, system ground, and telephone wiring - that were 'flash' wired in 1 to 2 days, where the team of electricians couldn't be bothered to shine and grease all the aluminum connections, nor use the more expensive "AL devices" burned down to the ground, and the NEC didn't even 'bother' to say that Aluminum wiring must be correctly installed until the 1980's. Of course "KAISER ALUMINUM" being on the National Fire Protection Association's 'advisory board' was just a coincidence. The aluminum companies decided to 'pull' the aluminum romex off the market, including the EXCELLENT copper-clad aluminum, which was totally safe and a great product.
When I was a kid, I asked about the cheap devices being used on a home under construction.... The guy doing the wiring said 'This ain't my house!".
The "FULL HOUSEPOWER" new homes at the time, with the BIG 100 ampere electric services, were the only homes that BURNED DOWN, - meanwhile - the old homes with the 'old-fashioned' 60 ampere services worked just fine.
I had one friend whose dad was an electrical engineer, and he had his home built with a BIG 150 ampere service, since as an engineer he wanted the best of everything.... Then one day we tried a Bell and Howell 16 mm projector with a 1000 watt projection lamp plugged into the 20 ampere #10 AWG AL dining room outlet.... After a 20 minute movie the entire WALL was HOT!