HP Nvidia Quadro 500M 1GB DDR3 PCI-E x16 Graphics Card
NVIDIA Quadro 500M PCIe x16 1GB DDR3 memory, 128-bit wide interface graphics card - Max power consumption of 35 Watts (Graphics Sub-System) - Mac Part Store
HP/Nvidia Quadro 500M Graphics Card for HP Z1 workstations 1GB D (677907-001) - Avanti Global Resources