HP NVIDIA Quadro FX 580 (FY945AA) 512 MB GDDR3 SDRAM PCI Express x16 Graphics adapter for sale online | eBay
Amazon.com: NVIDIA Quadro FX 580 by PNY 512MB GDDR3 PCI Express Gen 2 x16 DVI-I DL and Dual DisplayPort OpenGL, DirectX, CUDA and OpenCL Profesional Graphics Board, VCQFX580-PCIE-PB : Electronics
NVIDIA Quadro FX 580 Specs | TechPowerUp GPU Database