Add a Gigabit Ethernet RJ45 port & HDMI output to your port-limited laptop, through a single USB (Universal Serial Bus) 3.0 port. The USB31GEHD USB (Universal Serial Bus) 3.0 Mini Docking Station Adapter lets you add Gigabit Ethernet & HDMI connection ports to your Ultrabook, laptop, or desktop through a single USB (Universal Serial Bus) 3.0 host, giving you two connectivity ports that aren't always available on modern mobile computers. Providing full Gigabit bandwidth for faster network connections, this adapter leverages the 5 Gbps capabilities of the USB (Universal Serial Bus) 3.0 interface to support 10/100/1000 Mbps Ethernet & is fully compatible with IEEE 802.3/u/ab standards. Plus, the Gigabit adapter functions as an external graphics card, letting you add an external monitor in addition to your laptop display, with 2048x 1152 video & 5.1 surround sound audio (from HDMI port only). An ideal multi-port combo adapter for mobile or stationary environments with no external power adapter required, this USB (Universal Serial Bus)-Powered adapter is the perfect laptop accessory that tucks neatly into your travel bag with a compact & portable design. The mini docking station adapter ensures a quick & easy setup by automatically downloading the latest driver in Windows systems that have an active network connection, & offers backward compatibility with USB (Universal Serial Bus) 2.0 systems (speed limited by USB (Universal Serial Bus) bus).