I built a special PCIe card to test GPUs on the Pi | Jeff Geerling
Supermicro NVIDIA RTX A4500 20GB GDDR6 Graphics Card (GPU-NVQRTX-A4500)
HP NVIDIA T1000 PCIe 3.0 x16 Graphics Card, 8GB GDDR6 (5Z7D8AT)
NTI PCIE3-4K18GB-6VW 4K DisplayPort/HDMI PCIe Graphics Card, 6-Output
Amazon.com: RX 580 Graphics Card, GDDR5 8GB 256Bit PCI Express 3.0 x 16 Dual Fan Graphics Card, 8K Desktop Gaming Video Card, Computer GPU Support DP, DVI D, PC Graphic Cards : Electronics
Dell ATI Radeon X1300 256MB DDR2 PCIe Graphics Card
NVIDIA A100 Ampere 40 GB Graphics Card - PCIe 4.0 - Dual Slot - 900-21001-0000-000 | Exxact
102A9240220 ATI Radeon X1300 Pro 256MB DMS-59 Low Profile PCI Express x16 Video Graphics Card
Dell NVIDIA® T1000, 8 GB GDDR6, full height, PCIe 3.0x16, 4 mDP Graphics Card | Dell USA
PNY NVIDIA GeForce RTX 4060 Ti 8GB GDDR6 PCIe Gen 4 x16 Graphics Card with Dual Fan Black VCG4060T8DFXPB1-O - Best Buy
Guide to Types of Expansion Slots and Add-In Cards | Matrox Video
Dell AMD® Radeon™ W6300, 2 GB GDDR6, full height, PCIe 4.0x4, Graphics Card | Dell USA
Gaming Graphics Card HDMI/VGA/DVI Interface Compact PCIe x16 2.0 Low Profile | eBay
PEXHDCAP60L2 StarTech.com | StarTech.com PCIe x1 4GB Graphics Card, DVI, HDMI, VGA Output | 186-2024 | RS Components
Matrox M9120 512MB PCI Express x1 Low-Profile M9120-E512LAU1F
Amazon.com: Nvidia Quadro P400 - Graphics Card - Quadro P400 - 2 GB GDDR5 - PCIe 3.0 X16 Low Profile - 3 X Mini DisplayPort : Electronics
Amazon.com: HP 1ME01AT NVIDIA Quadro P1000 - Graphics card - Quadro P1000 - 4 GB GDDR5 - PCIe 3.0 x16 low profile - 4 x Mini DisplayPort - for Workstation Z240 (S : Electronics
PNY NVIDIA GeForce GT 1030 2GB PCI-E 3.0 Graphics Card Black VCGGT10302PB-BB - Best Buy
Notebook External Graphics Card Mini PCI-E to PCI-E x16 Riser Card External Graphics Card + 60 Laptop USB Cable Riser Card
M9188 PCIe x16 | Octal Multi-Display Graphics Card | Matrox Video
Matrox G550 PCIe x1 32-Bit Graphics Card G55-MDDE32F B&H Photo
Quadro-E PEG P620 | NVIDIA Professional Graphics Solutions | ADLINK
