Yealink 4-port PoE Switch. Meet Yealink RCH40, the Gigabit PoE+ Switch designed for Meeting Room Audio & Video Networking. With four Gigabit Ethernet downlink ports and one Gigabit Ethernet uplink port, Yealink RCH40 supports 802.3af/at standards, delivering up to 30W of power per port. With a total PoE power budget of up to 90W, it's an ideal solution for connect-ing audio and video devices in video conference systems.