Nvidia Quadro K4000 (2x DisplayPorts and 1x DVI, supports Metal) works great in Big Sur, must use passive adapters : r/macpro
How to Upgrade Your Mac Pro Graphics - YouTube
Review: Nvidia Quadro 4000 for the Mac Pro - Terry White's Tech Blog
NVidia Quadro 4000 Q4000 2G DDR5 Video Graphics Card DVI DP for Mac Pro 3.1-5.1 | eBay
Quadro 4000 Mac not Visible - CUDA Programming and Performance - NVIDIA Developer Forums
NVIDIA's Quadro 4000 for Mac, more affordable speed for the right application by Scott Simmons - ProVideo Coalition
NVIDIA Quadro K4000 VCQK4000-PB 3GB 192-bit GDDR5 PCI Express 2.0 x16 Full Height Workstation Video Card - Newegg.com
NVidia Quadro 4000 Q4000 2G DDR5 Video Graphics Card DVI DP for Mac Pro | eBay
Amazon.com: NVIDIA Quadro 4000 for Mac by PNY 2GB GDDR5 PCI Express Gen 2 x16 DVI-I DL, DisplayPort and Stereo OpenGL, DirectX (Boot Camp), CUDA and OpenCL Profesional Graphics Board, VCQ4000MAC-PB :
Quadro GPUs for Desktop and Mac Pro Workstations | NVIDIA
NVIDIA Quadro 4000 for Mac - 株式会社 エルザ ジャパン
NVIDIA's Quadro 4000 for Mac, more affordable speed for the right application by Scott Simmons - ProVideo Coalition
NVIDIA Quadro K4000 ultra-fast Performance 3GB Graphics Card - Great for AutoCad!
High quality Quadro 4000 Q4000 2G DDR5 cards with DVI DP connector CUDA OpenCL for mac pro 2008 2012 sent by DHL/EMS|Computer Cables & Connectors| - AliExpress
100% Full Tested Nvidia Quadro K5000 4gb Graphics Card For Mac Pro 3.1-5.1 Support 4k /bootcamp/cuda - Pc Hardware Cables & Adapters - AliExpress
NVIDIA Quadro K5000 4GB GDDR5 PCIe 2.0 x16- Apple Mac Pro 3,1 4,1 5,1 Compatible
Apple Mac Pro 5.1 MD772LL 2.66GHz 12 Core X5645 32Gb 500G 2TB Nvidia Quadro 4000 | Reverb
NVIDIA Launches Quadro 4000 GPU for Mac Pro - MacRumors