Features: brand new and high quality Made of high quality aluminum alloy material and built-in advanced for smart chip with the best heat dissipation function Type-C to USB3.0 standard port, theoretical transmission speed 5Gbps, backward for USB2.0/USB1.1 500mA-900mA. Support SD/for MMC/TF and other mobilephone camera memory cards, backward for USB 2.0/USB1.1. Support multiple drive letters, theoretical transmission speed 18-20mbps Support PD3.0 protocol, 20V/3A 60W electric power. HDMI-compatible 4K high-definition video output, 30Hz synchronous operation. Specifications: Model Number: Type C Docking Station Color: Silver /Gray Material：Aluminum Alloy Size: Approx 10.7x5x1cm/4.21x1.97x0.39in Ports: 7 Ports: HDMI-compatible 4K / TF/ SD/ DP 100W/ 3x USB3.0 (5Gbps) Package Includes: 1 Piece x Type C Hub note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.