USB 2.0 to micro type B- a generic is no big deal. 99% are made in China sold in the USA are USA spec.
He bought the phone at BestBuy a USA company he's in the USA.
I have 3 different USB to micro B cables that I use with my Lumia 810
one connected to my pc, one with the original wall charger and one for the 12V car charger,
I've used them interchangeably with no issues.
When I first got mine I misplaced the OE USB cable and couldn't charge it, I called NOKIA and they said I
could use generic one if I wanted to, they just said use a
quality one, whatever that means, they didn't give me specs other than USB 2.0 to micro B.
It doesn't matter it would be like using a GE extension cord vs an Ace Hardware extension cord to connect
your TV to the wall socket.
As
z33dev33l says, the cable is the same everywhere & don't use an aftermarket charger,
it looks like he didn't from the photo as all we can see is the cable.
. The USB cable is the same everywhere. Don't use aftermarket chargers.