Matrox C-Series Graphics Cards Performance Meets Flexibility Matrox C-Series, multi-monitor video cards, featuring four, six, and nine-output models, let you drive multiple displays or projectors from a single graphics board. Designed and built to ensure excellent reliability, stability, and ease of deployment, C-Series PCI Express® x16 boards are ideal to power multi-screen desktops, workstations, digital signage players, and video wall systems in commercial and critical environments.