Brand new upgrade: M.2 NVMe expansion slot, HDMI 2.0 (4K@60Hz), Gigabit Ethernet (1000Mbps), 1 USB3.0 (5Gbps), 3 USB2.0, USB Type C PD 3.0 (100W),SD/TF reader,1 Key to change Screen,this handheld console dock combines hub, stand base,heat sink,40Gbps Type C adapter,4 Cpas,1 HDMI cord in 1.5M,it is a professional handheld gaming dock station. Widely Compatibility:Compatible with Steam Deck OLED,Steam deck,ROG Ally,Legion Go,Switch,laptop,iPad,Android,phones and other devices built-in USB C port. 4K@60Hz: This Gamer Docking station comes with a 4K@60Hz HD ,When you connect an external 4K monitor,Cooling RGB Fans: Good heat dissipation not only extends the battery life of the steam deck, but also prevents other problems caused by overheat,increase the speed of cooling air entering steam deck so that heat dissipates faster. Stable transmission:which could elevate your gaming to the next level with blazing-fast gigabit Ethernet, delivery unparalleled download and upload speeds