Sceptre U508CV-UMK 49-Inch Ultra Slim 4K Ultra UHD LED TV, Just Black 2017 Ultra High Resolution 3840 x 2160; Ultra Slim Design. The 4K TV Box is designed for U500 series. HDMI 2.0, the max throughput of a beefy 18Gbps; HDCP 2.2 MHL ROKU Ready USB Port; 3x HDMI Ultra High Contrast 5,000,000:1