Features: brand new and high quality Extending your laptop with multi-ports,with 3/2 USB 3.0 port(Optional) ,1 HDMI-compatible 4K port and 1 Rj45 port (optional) ;SD Tf Slots for superior data transfer. Made of high quality aluminum+PC material and built-in advanced for smart chip with the best heat dissipation function Supports the function of working all ports without delays and interference, professionally for surface pro 4/5/6 Exquisite ultra-slim design, our us hub is compact and lightweight, without taking up too much space. Easy to plug and for play, sleek compact with pocket size easy to set into your laptop sleeve, bag or pocket. Specifications: Model Number: USB Docking Station Standard: USB 3.0 5Gbps Color: As Shown Material：Aluminum +PC Weight：78g/0.67lb Size: Approx 9.5x5cm/3.74X1.96in Type: With/Without Ethernet Input interface: MiNi DP + USB 3.0 Applicable: Surface Pro 4/5/6 Support Memory Card SD Slot: Support SD, SDXC, SDHC, RS-MMC TF Slot: Support Micro SD, Micro SDHC, Micro SDXC Output interface: 4K HDMI-compatible + SD / TF card Slot + 3/2 USB 3.0+Lan(Optional) Installation Method: External Package Includes: 1 Piece USB 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.