1 - A GeForce GTX 550 Ti GPU must be paired with another GeForce GTX 550 Ti GPU (graphics card manufacturer can be different). SLI requires sufficient system cooling and a compatible power supply. See list of SLI-Certified components for more information.
4 - NVIDIA Surround requires two or more graphics cards in NVIDIA SLI configuration. Visit the NVIDIA Surround section for more information.
3 - Support for HDMI including GPU accelerated Blu-ray 3D support (Blu-ray 3D playback requires the purchase of a compatible software player from CyberLink, ArcSoft, Corel, or Sonic), x.v.Color, HDMI Deep Color, and 7.1 digital surround sound. Upgrade your GPU to full 3D capability with NVIDIA 3DTV Play software, enabling 3D gaming, picture viewing and 3D web video streaming. See www.nvidia.co.uk/3dtv for more details.
5 - Not applicable to OEM sku – contact OEM for more information.