Amazon.com: Valley Of The Sun for NVIDIA Quadro K3100M GDDR5 4GB Graphics Video Card, for HP ZBook 17 G3 G4 Mobile Workstation Laptop PC, N15E-Q1-A2 MXM 3.0 VGA Board Replacement Parts :
nVIDIA Quadro K3100M 4GB Video Card HP 8740W 8760W 180-12053-1002-A02 | eBay
NVIDIA NVS 3100M Specs | TechPowerUp GPU Database
HP E5Z76AT - 4GB PCI-E Nvidia Quadro K3100M Video Card