ZOTAC GeForce GT730 4GB DDR3 DVI VGA HDMI PCI-Express 2.0 Low Profile Fanless Graphics Card ZT-71108-10L 384 processor cores 64-bit memory bus Engine clock: 902 MHz Memory clock: 1800 MHz PCI Express 2.0 (x8 lanes) 1 x DL-DVI-D 1 x VGA 1 x HDMI Triple simultaneous display capable HDCP compliant NVIDIA GeForce driver Microsoft DirectX 12 (feature level 11_0) OpenGL 4.4 Microsoft Windows Vista/7/8 x86/x64 ED 480p HD 720p HD 1080i Full HD 1080p Quad Full HD (4K) 300-watt power supply recommended 25-watt max power consumption