ASUS GeForce 8400 GS 512MB 64-bit DDR2 PCI Express 2.0 x16 Low Profile Ready Video Card, EN8400GS SILENT/DI/512MD2(LP) Chipset: GeForce 8400GS Engine Clock: 589 MHz Video Memory: 512MB DDR2 Memory Clock: 667 MHz Memory Interface: 64-bit Bus: PCI-Express 2.0 x16 RAMDAC: 400 MHz Max. Resolution: 2560 x 1600 Connectors: VGA, DVI-I, HDMIThermal: Fanless Support HDCP - High-bandwidth Digital Content Protection Support nVidia PhysX TechnologySupport nVidia PureVideo HD Technology Support nVidia GeForce CUDA Technology Support Microsoft DirectX 10.1 Low Profile Design