Core Features: BYOD: work with Yealink video conferencing system* Presentation: work with Yealink video conferencing system Easy to Use Plug and Play 1 x 100Mbps RJ45 port (IEEE 802.3af, full-duplex) 1 x USB 2.0 Type A 1 x USB 2.0 Type C (with DP video input) 1 x HDMI video input Presentation resolution: up to 4Kp15