The Guntermann & Drunck FiberVision-(M)-MC4-AR-CPU KVM Quad Head Screen transmitter, A1110108 has now been superseded by the DVI-Vision-Fiber(M)-MC4-AR-CPU A1410175, please Click on the link below to take you to the new specifications and Data Sheet
http://www.omniotech.com/gd-dvi-vision-fiber-mm-quad-head-screen-a1410175-pr-2260.php
The added advantages are as follows:
Audio and Serial as standard
Operational On-Screen Display
Pro-active system Monitoring & Web Interface as standard
Optional Rack Mount kit