Review on Angusplay Bidirectional DisplayPort Switch: DP 1.4 Splitter for 2 in 1 Out, 8K/4K/1080P HD Support - Manual DP Switcher for PC Host Monitor and More by Carl Higdem

This product just doesn't work as described and I'm willing to bet thousands of dollars that the seller knows. This switch barely works at most resolutions, even at 59 Hz. The description says this runs at 1440p at 120Hz and higher. Let me make a correction, if you flip the switch over 200 times, it can run at 120Hz+ a total of 3 times. This switch does not always offer a specific level of performance. When I change the display settings, my monitor goes haywire for a full 30 seconds. If I'm lucky, I can change the frame rate from 59 to 84. Otherwise, both of my screens just go black - even the screen that isn't connected to the Switch! It CAN run at 120Hz+ on RANDOM opportunities after potentially HUNDREDS of tries. Lie. brazen lie. When the price is too good to be true. Yes, it's too good to be true. This works like a very basic KVM. It is NOT a competitor to more expensive switches. If you're looking for 100Hz+ at any resolution, G-Sync compatibility, or a seamless transition between both machines, look elsewhere and expect to pay over $100, $250, or $500 depending on whether you have 1, 2, or 3 want these functions.