This RCA 1 to 3 HDMI port switcher that expands 1 HDMI port into 3 port and carries up to 2160p (4K) video and digital audio signals, able to switch through all 3 of the ports instantly to have access to different medias Features This RCA switch expands 1 HDMI port into 3 ports Carries high-definition video and digital audio signals Integrated switch to be able to swap between media sources Micro-USB port can be used to connect a USB power adapter or to plug into a spare USB port on your TV/device for power 2160p 4K Powered: HDMI connection/ or Micro USB