Matrox C420 (C420-E2GBLAF) 2GB GDDR5 PCI Express 3.0 x16 Low Profile Workstation Video Card Chipset Manufacturer: AMD DirectX: DirectX 11.2 OpenGL: OpenGL 4.4 DisplayPort: 4 x Mini DisplayPort Cooler: Fanless System Requirements: Single available PCIe x16 lane 256MB of system memory Internet access for software installation Compatible operating system Package Contents: Matrox C420 board with factory-installed ATX bracket Low profile bracket Quick-start guide Display drivers and Matrox PowerDesk desktop management software available for download from Matrox website