Amazon.com: Epic IT Service – Quadro K4000 with Two DP Ports, one DVI Port, and Supports Three Monitors, 4K Resolution via DP or HDMI (1 Year Warranty) : Electronics
NVIDIA Quadro K4000 ultra-fast Performance 3GB Graphics Card - Great for AutoCad!
Quadro K4000 Dell Nvidia 3GB GDDR5 Displayport DVI-I PCI-E 2.0 Video Card CN3GX PCI-EXPRESS Video Cards - Walmart.com
NVIDIA Quadro K4000 VCQK4000-PB 3GB 192-bit GDDR5 PCI Express 2.0 x16 Full Height Workstation Video Card - Newegg.com
713381-001 - New Other - HP NVIDIA QUADRO K4000 GRAPHICS CARD 3GB 768 CUDA CORES MEMORY INTERFACE 192 BIT GDDR5 MEMORY BANDWIDTH 134.0GB/S PCI-E 2.0 X16 ( 1 ) ONE DUAL LINK