This Universal 4K HDMI Dongle Adapter Rings are the perfect addition to conference rooms, huddle spaces, lecture halls, or classrooms to ensure that anyone can connect. The standard configuration includes the adapters to connect nearly any device to the in-room display while supporting up to a 4K video resolution. C2G offers various connection combinations that can include HDMI to DisplayPort, Lightning, Mini DisplayPort, Micro HDMI, Mini HDMI, USB-C, VGA adapters to meet connectivity challenges. C2G30028