This 3D model was originally created with Sketchup 7 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Cisco GXR 12816 Router. Yeah I know.. the difference between the 12416 and 12816 is what fabric cards you put in.. can be used for either I suppose