1Using aluminum alloy shell, the docking station is sturdy and durable, good heat dissipation, you can use it for a long time. 2Supports 87W fast charge, fast charging speed, builtin 100M Ethernet port, connects to wired network to provide more stable and connection. 3With USB3.0 interface, 5Gbps transmission speed, stable and fast data transmission, the expansion dock provide a good experience. 4Supports dual cards can be read at the same time, memory card and TF card can be read at the same time. 5HighDefinition Multimedia Interface supports 3840 x 2160/30Hz resolution, 4K HD TV, giving you a cinemalike experience. Item Type: Docking Station Material: Aluminum Alloy HighDefinition Multimedia Interface Resolution: 3840 x 2160 at 30HZ PD Charging Power: 87W USB3.0 Rate: 5Gbps Expansion Interface: USB3.0 Interface, HighDefinition Multimedia Interface, RJ45 Network Port, TF/Memory Card Slot, PD Charging Port 1 xDocking Station