ZOTAC nVidia GeForce 8400GS 512 MB DDR3 VGA/DVI/HDMI PCI-Express Low Profile Video Card ZT-84GEM2M-HSL Chipset: GeForce 8400GS Engine Clock: 520 MHz Video Memory: 512MB DDR3 Memory Interface: 64-bit Support Microsoft Windows XP/ Vista/ 7 Support HDCP - High-bandwidth Digital Content Protection Power requirements: 350-watt power supply recommended, 18-watt max power consumption