Cat6 Punch down Keystone Jack On Clearance Sale,$0.99 ONLY! Andrew Lu August 28, 2014 August 28, 2014 No Comments on Cat6 Punch down Keystone Jack On Clearance Sale,$0.99 ONLY! Cat6 Keystone Jack is an important component part used in the LAN work area, connecting data and integrated wiring. It is widely used in our houses, offices and chambers etc…. Read more »