ZOTAC nVidia GeForce 8400GS 512 MB DDR2 VGA/DVI/HDMI Low Profile PCI-Express Video Card, ZT-84GEH2M-HSL Chipset: GeForce 8400GS Engine Clock: 520 MHz Video Memory: 512MB DDR2 Memory Clock: 667 MHz Memory Interface: 64-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Stream Processors: 8 Max. Resolution: 2560 x 1600 Connectors: VGA; DVI; HDMI Thermal: Fanless Support Microsoft Windows XP/ Vista/ 7 Support nVidia Unified Architecture Support nVidia CUDA Technology Support nVidia Lumenex Engine Technology Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 10.1 and OpenGL 3.2 Support HDCP - High-bandwidth Digital Content Protection Support Microsoft DirectX 10.1 and OpenGL 3.2 Support nVidia GigaThread Technology Support nVidia PureVideo HD Technology Low Profile Design Power requirements: 350-watt power supply recommended, 18-watt max power consumptionRoHS Compliant Low Profile Design Power requirements: 350-watt power supply recommended, 18-watt max power consumption RoHS Compliant