If you've ever thought to yourself, "Boy, I sure wish I had an excessively detailed model of the NVIDIA 2-way SLI bridge for single slot card spacing", then today's you're lucky day!
Modeled using measurements from a digital caliper, this model should be accurate to about 0.1mm.
Note: This is the Medium bridge, 60.96mm spacing, sometimes referred to as single-slot spacing. An example of the bridge installed here.
STEP and SketchUp models included in the .zip file.