Port Expansion: The primary function is to provide additional ports, which can vary widely by model.
Data Transfer: Most hubs include USB-A (e.g., USB 3.0/3.1) and potentially USB-C data ports that support high-speed data transfer rates, typically up to 5 Gbps or even 10 Gbps.
Video Output: Many hubs feature video ports like HDMI, VGA, or Mini DisplayPort, enabling users to connect external monitors, TVs, or projectors with resolutions up to 4K.
Power Delivery (PD): PD-enabled hubs allow you to charge your host device (like a laptop) while using the hub’s other ports. Power delivery capabilities can range up to 100W or more.
Network Connectivity: Some advanced hubs include an Ethernet port (RJ45) for a stable, wired internet connection, which is often more reliable than Wi-Fi.
Memory Card Readers: Built-in SD and microSD card slots are common features, useful for photographers and videographers to quickly transfer files from their cameras.