Features: 1.easily connect additional monitors using a USB 2.0 cable 2.simple instal and use 3.quickly add up to six display to a desktop or notebook pc with minimal configuration and without an additional graphics card 4.mirror or extend a computer display workspace 5.allows for effortsless multitasking 6.Bus powered -NO external power supply needed 7.supports usage through powered KVMP'S or USB hub system requirments: 1.CPU with 1.2GHZ or higher processor(intel pentium/celeron familyAMD K6 /Athlon/Duron familyor compatible processor) 2.256MB RAM 3.one available USB port 4.30Mb of available disk space 5.super VGA (800*600)or higher resolution monitor 6.Win2K/XP/vista 32/64-bitwindows 7Mac os Xlinux OS