The Synaptics VMM5200 is a high-speed video interface controller used in USB-C dongles, docking hubs, and adapters to expand display connectivity from a host device. It functions as a DisplayPort HBR3 receiver with two HDMI 2.0b transmitter ports, enabling dual 4K 60 Hz video output via Multi-Stream Transport (MST). The chip includes Display Stream Compression (DSC) decoding and forward error correction (FEC) for reliable signal integrity, and supports HDCP 2.3 content protection, making it ideal for productivity setups and multimedia use cases requiring multiple external displays from a single USB-C source.