The card was designed to work in servers. I trust you know what you are looking at if browsing for a P40.
NVIDIA Tesla P40 24GB GDDR5 PCI-E 3.0 x 16 GPU Accelerator Graphics Video Card
NVIDIA Tesla P40 24GB GDDR5 Graphics Card (9002G6100000000)
NVIDIA Tesla P40 24GB DDR5 GPU Accelerator Card Dual PCI-E 3.0 x16 FOR SERVERS
Nvidia Tesla P40 24GB GPU GDDR5 PCIE x16 Accelerator card 900-2G610-0000-000
Briny River 2pcs 8cm Slim GPU Graphics Card Support Bracket Compatible with Nvidia Tesla P4 M4 T4
2-Pack PCIe 6 Pin to 8 Pin (6+2) Power Cable 20Inch GPU Converter for Cooler Master Thermaltake PSU with Standard 6-Pin Port, for ASUS ASRock Gigabyte Radeon Sapphire NVIDIA Tesla Graphics Card
