The Radeon R9 280X 3GB Metal GPU Video Graphics Card is a high-performance component designed for Mac Pro systems, offering support for 4K resolution and a variety of connectivity options including DisplayPort, DVI, HDMI, and Mini DisplayPort. With a 3GB GDDR5 memory size and a powerful AMD chipset, this card is capable of handling demanding graphics tasks and is equipped with features such as multiple monitor support. It also includes support for various APIs like DirectX 11.1, OpenCL 1.2, and Metal, making it a versatile option for enhancing your computing experience.