I bought a batch of them a couple of years ago, and can't really tell the origin of the cable; however they are different in appearance from some I had bought previously that were obviously Belden. In use I don't notice any difference, except that the outer insulation is a little bit stiffer. Sonically, no difference.
IMO they are still a great deal and worth using for DIY, especially for the price ($12 for a 14/3, 6'7" shielded cord).
IMO they are still a great deal and worth using for DIY, especially for the price ($12 for a 14/3, 6'7" shielded cord).