Description: Wireworld Island 5 HDMI Video Cable Signal integrity in the Series 5 cables is further maintained by the use of die-cast zinc connectors- which provide high durability and superior shielding. These connectors also house the proprietary cable terminations- which maintain the cable's precise 100-ohm impedance all the way to the plug contacts. The contacts are clad with a thick layer of silver- rather than the standard nickel- under their gold plating to reduce the contact loss by more than half.