Color: Gray Material: Aluminum Alloy Interface: USB Type C Male Port-1: HDMI, supports up to 4K 30Hz, downward compatible with 1080P, 720P, etc. Port-2: HDMI, supports up to 4K 30Hz, downward compatible with 1080P, 720P, etc. Port-3: USB Type C PD Charging Port Port-4: USB 3.0, speed up to 5Gbps, power supply up to 5V-900mA (4.5W) Function-1: Connect keyboard, mouse, USB flash drive, printer, and other USB devices Function-2: Supports USB C power delivery to maintain laptop performance Feature-1: Extend display via HDMI for larger screen output Feature-2: Connect to projector, monitor, or HDTV with HDMI support up to 4K 3840x2160 at 30Hz Feature-3: Dual HDMI ports support mirror mode and extended display mode Feature-4: Supports MST (Multi-Stream Transport) for extended mode on two monitors with different content (Windows only) Compatibility Note: - The laptop must have a Thunderbolt 3 enabled USB-C port - The laptops USB-C port must support power delivery, or the user must not intend to power the laptop through this docking station Warning: 1. Confirm docking station compatibility with your laptop before use 2. MST is supported only on Windows systems for extending two displays with different content 3. 4K resolution at 30Hz is supported on one HDMI port only; the second HDMI port will be disabled when 4K is active on the first 4. When connecting monitors, plug the monitor into the docking station first, then connect the docking station to the laptop. HDMI hot plug is not supported Package Includes: 1 x Docking Station