The dynadock U Universal USB Docking Station links all your devices, external monitor and sound system with one USB cable into your computer. There's no need to plug in multiple cables every time you return to your desk. Virtually any brand of Windows-based PC with a USB 2.0 port is compatible with it. The upright slim design saves precious desktop space while providing fast access to your desktop environment. With a built-in HD Digital Video card to connect a HD quality monitor, dynadock enables you to view up to 3 displays simultaneously. Enjoy true multimedia experience with the built-in Digital Card connecting high quality 7.1 surround sound through the S/PDIF port. Plus, it adds six USB 2.0 ports-two are "sleep and charge" capable, Ethernet LAN and 3.5mm audio for headphones and microphones.