类别 HDMI™ Extender (70m/POC) HDMI™ Extender (70m) HDMI™ Extender (70m) 4K60 HDMI™ Extender (50m) 4K60 HDMI™ Extender (70m) 1080P HDMI™ Extender over CAT6 Cable (150m) 1080P HDMI™ Extender over CAT6 Cable (50m)