HIS Radeon HD 5450 Silence 1 GB (64bit) DDR3 Eyefinity Displayport DL-DVI (HDCP) VGA PCI Express 2.1 16x Low Profile Video Card Retail (RoHS) H545H1GDL ATI RadeonTM HD 5450 Series GPUs fully support Microsoft DirectX 11, enabling Tessellation, HDR Texture compression Go Beyond HD Video Enjoy all the benefits of Microsoft Windows 7 with ATI RadeonTM HD 5400 Series ATI Eyefinity Technology: Run up to 3 displays from a single graphics board and expand your gaming field of view across all displays.