If you don't know, it probably isn't; they brand it quite extensively both outside and in the USB manufacturer strings (it appears as "Blog V4" in the device selection window.)

If it is indeed not one of them, I'd be interested in getting one to test on, so I'd like to know where you got it from. Can you email me? My address is trivial to find or figure out knowing my website is https://jacobo.tarrio.org :-)