Pulled out of a HP Z4 Workstation PC, all working before removing, and also tested in a custom PC and still working The NVIDIA Quadro M4000 Workstation GPU is a high-performance 8GB GDDR5 graphics card designed for professional users in fields such as graphic design, animation, and video editing. With four DisplayPort connectors, this card supports multiple monitors and is SLI/CrossFire ready for enhanced performance. The chipset manufacturer, NVIDIA, ensures top-quality graphics capabilities with APIs like DirectX 12, OpenGL 4.6, and Vulkan. The cooling component included, a fan with heatsink, ensures optimal temperature management during intensive usage. Overall, the NVIDIA Quadro M4000 is a powerful and reliable choice for demanding computing tasks.