Accell Mini DisplayPort 1.1 to HDMI 1.4 Active Adapter - AMD Eyefinity Certified, 4K UHD @30Hz, 1920x1080@120Hz - Poly Bag Package Supports up to 4K Ultra HD and 1080p @120Hz Up to a 300 MHz clock rate for stereoscopic 3D support Compliant to HDMI 1.4b and DisplayPort Dual-Mode v1.1 Plug and play, no software to install or external power needed AMD Eyefinity certified for 3 monitor configurations, a validation only awarded to products that have undergone extensive synthetic and real-world testing