The VisionTek RX550 4GB 4x DisplayPort Video Card lets you power four 4K monitors at 60 Hz each. The graphics card supports full size DisplayPort outputs and AMD Radeon Eyefinity allows you to configure your screens in a variety of modes to optimize your desktop. Each port supports independent resolutions, audio and refresh rates so you can use a variety of monitors for your setup. The bus-powered design works in most systems that have a full height PCIe 3.0 card slot. The VisionTek RX550 4GB Video Card gives you the power and performance you need to take business to the next level.