Powerful Ports Expansion Seamlessly attaches to Surface Pro 11/10/9, adding 6 ports: USB4 pass-through, USB-C 3.2 Gen 2, USB-A 3.2 Gen 2 (10Gbps), HDMI 2.0, and SD/microSD UHS-I card slots. The USB4 port supports up to 6K video output and 40Gbps transfer speeds. 100W Power Delivery Keep your Surface Pro powered with up to 100W pass-through charging while simultaneously powering accessories like your smartphone or tablet. High-Speed Data Transfers USB4 port delivers up to 40Gbps bandwidth, while USB-C and USB-A 3.2 Gen 2 ports enable fast 10Gbps transfers with compatible devices. Dual 4K Video Output Use the HDMI and USB4 ports together for dual 4K/60Hz displays, or connect via USB4 alone for up to 6K/60Hz on a single screen. What's Included - When you purchase the Satechi Dual USB-C Hub, you receive prompt customer service and a user manual. Satechi products are covered by a 2-year limited warranty against defects in materials and workmanship under normal use.