Connect laptops and other video sources with USB-C or Mini DisplayPort outputs to an HDMI display, projector, or room display connection. The C2G30057 Premium HDMI Dongle Ring combines a 15 ft HDMI cable run with USB-C and Mini DisplayPort presentation adapters, keeping the source conversion options physically associated with the HDMI connection rather than stored separately. The 15 ft cable length supports installations where the display connection is beyond immediate reach of the presenter, such as conference tables, lecterns, training rooms, and classroom instructor stations. A presenter can select the adapter matching the available video port on the source device and connect through the HDMI display path. Support for up to 4K video makes the assembly suitable for UHD displays where the connected source and display support the required video mode. Within the Premium HDMI Dongle Ring range, this configuration is distinguished by its 15 ft reach and its inclusion of both USB-C and Mini DisplayPort source adapters. It addresses mixed-device rooms where newer USB-C laptops and systems with Mini DisplayPort may share the same display. The attached-ring format helps keep the adapters with the cable at the point of use, reducing the chance that a required presentation adapter is elsewhere when a session begins.