Amazon.com: Next Level Racing Elite Free Standing Quad Monitor Stand - Black Edition (NLR-E037) : Electronics
P1-X quad monitor mount installed on integrated single monitor mount. Hope that helps illustrate how it is installed. : r/simracing
Amazon.com: Triple Monitor Floor Stand GEN2 for Racing and Flight Simulators Model LD | for Monitors up to 100x100mm VESA Mount or 24, 27, 32, 34-39 (Triple Stand for Monitors, LD) : Video Games
Sim-Lab P1-X cockpit with pedal slider base & triple monitor stand – SimRaceBlog
Sim-Lab Integrated Triple Monitor Mount | Premium sim racing store