StarTech.com 4K 30Hz Active HDMI 1.4 to DisplayPort 1.2 Adapter (HD2DPMM6)
Amazon.co.jp: Tuna HDMI Cable 15m (2K 4K 30Hz HDMI 1.4 Standard) HDMI CABLE 1080P 10.2Gbps High Speed Ethernet Compatible (Type A Male to Type A Male) to Reflect Computer Screen on TV