Specification:

• Audio:5.1-Channel Surround(48khz)
• Chipset ID: Display link-dl-3900
• Memory:512MB DDR II
• Output signal: HDMI-DVI or HDMI-VGA
• Max Resolutions: HDMI 2048x1152 or 2560x1440p50
• DVI 2048x1152
• VGA 1920x1080
• Connectors:1-DVI-D(25pin)Female
• 1-HDMI(19pin)Female
• 1-VGA(15pin;High Density D-Sub)Female
• 1-3.5mm Mini-Jack Female
• Office Application:
• CPU:i3 Dual core 2.8GHz
• RAM:2GB or higher
• Full HD Video:
• CPU: Quad Core 2.4GHz or Higher(i5 recommended)
• RAM:4GB or higher
• System and Cable Requirements: HDMI(and either DVI-D or VGA if dual display is desired)enabled display 
• device(s)e.g. monitor, projector, HDTV, etc. with cables
• USB3.0 enabled computer system with available USB 3.0 port

Applications:

• Turn a laptop into a multi-monitor workstation(up to 3 screen total)for increased productivity
• Add dual video outputs to a laptop or small form factor computer, where the video card can not be replaced
• Connect a wide variety of peripherals at home/office to a laptop all from a single USB connection