Expand your laptop into a desktop in one simple step with the Kensington Universal Docking Station sd420v with video, ethernet and additional USB ports. The docking station offers universal compatibility with all brands of PC laptop via USB 2.0, including Acer, Asus, Compaq, Dell, Gateway, HP, IBM, Lenovo, Sony, Toshiba and more. You can use the docking station to add an additional display and a variety of USB devices with one USB cable. Featuring 4 hot swappable USB ports, you can connect your mouse, hard drive, and other USB devices without shutting down your laptop. These "always on" ports charge your devices with 1.0mA power, even if your lap top is closed down. The 10/100 Ethernet port allows you to maintain high speed internet connections and avoid wireless hangups. The unit is DVI compatible, and you can add a VGA or HD screen to increase your visual workspace and productivity. Teh DisplayLink DualView feature is an easily accessible button that allows easy set up of the second display. There"s even a "fit to TV" feature. Audio ports enable front and back headphones/speakers and mic ports let you connect both 2.1 stereo speakers and internet chat headset. The dock incorporates a new, improved 6.0 driver for Windows 7 (32-bit and 64-bit editions), Windows Vista (32-bit and 64-bit editions) Windows XP (sp2, sp3, including Tablet PC editions).