Mobile Adapter Speakerphone

Dell MH3021P Mobile Adapter Speakerphone combines a conference speakerphone with a compact hub for connecting a computer to a display and USB devices. Its built-in USB-C cable connects to a Thunderbolt or USB-C port with DisplayPort Alt Mode.

The hub provides HDMI 2.0, two USB-A ports and one USB-C port. It supports one display at a time, with video output up to 3840 × 2160 at 60 Hz through HDMI or USB-C; 4K at 60 Hz requires a computer with HBR3. When connected to a suitable external USB-C power source, Power Delivery supports up to 90 W.

For calls, the unit has a speaker, two omnidirectional microphones, and buttons for answering or rejecting calls, adjusting volume and muting the microphone. The guide lists a pouch and documentation with the adapter.