This 3D model was originally created with Sketchup 13 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Square Pin header/connector. These usually come in rows or double rows of several pins at 0.1 inch (2.54 mm) pitch. Copy this model the number of times required.