BCC Hardware posted a review on the Zalman VF900-Cu Heatpipe GPU Cooler - SLI

We’ve recently taken a look at the latest GPU cooler from Zalman - the VF900-Cu. This heatsink uses a couple of heatpipes and a very shiny bottom to get the job done. Zalman has included the Fan Mate 2 controller so you have total control over fan speed, noise and performance. We’ve dropped this into an SLI setup to see how well it can do with limited breathing room. This is perhaps one of the hardest jobs a GPU cooler will have to contend with - a toasty GPU and close proximity to another toasty GPU. Take a look and see if and how well it survives.

Zalman VF900-Cu Heatpipe GPU Cooler - SLI