The HDX4000 takes the functionality of the HDX7000 and puts it in a neat desktop unit with a 20” HD Screen.  The system comes with built-in speakers, the ability to share content with the Polycom People & Content software, multi-site conferencing  allowing you to host a conference with 4 sites in total.  Calls can be made over IP and ISDN ( with the additional Bri Module ).  The HDX4000 also has a headset jack for private conferencing.  All these key features make HDX4000 series the ultimate in desktop conferencing giving you total control without having to move to a dedicated VC room   

Key Features
Application - Desktop use for 2 to 3 people
20" WideScreen
4 Way Multisite Software available seperately
Quad Bri Module available seperately
People & Content available seperately 
Supports upto 3 mics 

HD video conferencing at the desktop with the power of Polycom UltimateHD
The Polycom HDX 4500 is an all-in-one personal telepresence system that offers an incredible UltimateHD™ Experience. A 24 inch screen, 1080p camera and powerful speaker transform any desktop into a multi-media powerhouse. With video resolutions up to 1080p30 and 720p60, life-like video calls await any user. The HDX 4500 also has an additional video output to allow end-users display near or far end video on a secondary monitor in the room.

Key Features
Application - Desktop use for 2 to 3 people
24" WideScreen
4 Way Multisite Software available seperately
Quad Bri Module available seperately
People & Content included
Dual Screen supported 
Supports upto 2 mics