I tried to setup a 3x3 video wall using w600. I used 3 startech MSTMDP123DP mini display port to display port splitters to split 3 of the w600 ports in to 6 display and tried to use rest of the 3 ports directly. Unfortunately catalyst center only allows me to add up to 6 panels. Based on the w600 datasheet each port on the grpahics cards support upto 4096 x 2160 resolution, therefor it should technically support 3840x2160 without any issues (two 1080p displays on the same port). Therefor I believe w600 only limited to 6 panels is because of a software limitation.Please feel free to correct me, Is there any way I can take out that limitation?