Have 18 systems coming with AMD FirePro V3900 card that has Dual DVI-I and DP outputs that says it can support spanning to 5 displays. I only want spanning to 2 displays, but the displays we already have are VGA only. I thought the cleanest way would be to just use a DVI-I to dual VGA cable and found the Matrox CAB-DVI-2XAF cable. But it is out of production and I can't find anybody that has Qty 18. Other DVI to dual VGA cables seem to just split a single output for 2 identical displays (not what I want).
Anyway, what is the best solution, one DVI to VGA adapter and one Display Port to VGA adapter for each system?