In order to make the surround technology work, nVIDIA requires at least two cards connected through SLI technology. The compatibility reaches the GeForce GTX 200 cards, based thus on the GT200 GPU, besides those with Fermi architecture, of course.

The need for two cards is a practical one: each GTX 200 card (and the same goes for the Fermi cards) can manage only up to 2 simultaneous screens, despite the fact that the number of display connectors could be higher than that. The presence of two cards connected through SLI allows the cards to manage the 3 displays, and also benefits from two GPUs for all the 3D renderings.