HP NVIDIA Quadro FX 3700 (KD506AA) 512MB GDDR3 SDRAM PCI Express x16 GPU 883585590445 | 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