LPS for Verizon Fios Router


I want to use LPS on my Verizon Fios Router.  The stock 2.5mm DC cable is too large so bought a 2.1mm and still too large.  Does anyone know the DC cable size?
joecasey
Should that affect performance of the router? esp. sound reproduction?
Most likely if stock is SPS and using ethernet DAC.

Been rolling ethernet cables and can’t believe Supra CAT8 made such an improvement so want to try LPS on router. Funny is Supra is the least expensive cable.