Add DVI video, as well as audio & Gigabit Ethernet connection ports to a laptop computer through a single USB (Universal Serial Bus) 3.0 port. The USB3SDOCKD Universal USB (Universal Serial Bus) 3.0 Laptop Docking Station/ Port Replicator with DVI, Audio & Ethernet adds an external DVI output, headphone/mic, as well as Gigabit Ethernet & additional USB (Universal Serial Bus) 3.0 & USB (Universal Serial Bus) 2.0 ports, all from a single device & over a single Super Speed USB (Universal Serial Bus) 3.0 connection. This highly versatile port replicator/universal docking station lets you expand or mirror your computer's main desktop at video resolutions up to 1920x 1200, with DVI monitor output, as well as an included DVI to VGA adapter. The docking station also combines USB (Universal Serial Bus) 2.0 & USB (Universal Serial Bus) 3.0 hubs, headphone & microphone audio connectors & a Gigabit Ethernet RJ45 port into an all-in-one laptop/notebook docking station that makes for the perfect accessory for users who need to connect & manage many devices on their laptops at home or at the office.