Yealink RoomCast. Form factor: Desktop, Product colour: Black, Cable lock slot type: Kensington. Maximum resolution (HDMI): 3840 x 2160 pixels, Supported graphics resolutions: 3840 x 2160, Supported video modes: 2160p. Wi-Fi standards: Wi-Fi 5 (802.11ac), Top Wi-Fi standard: Wi-Fi 5 (802.11ac), Ethernet LAN data rates: 10,100,1000 Mbit/s. Interface: HDMI. Power source type: DC, PoE, Output voltage: 12 V