Users generally like Amazon Basics monitors, with many praising their good value. However, there are issues, such as poor ...

U1D and associated components R5, C2, and D1 form an integrator, whose time constant results in a 64-μs, positive-going, sync-pulse output that meets the VGA specification for V SYNC.

RGB Video-Sync Separator Interfaces VGA Monitor Using Basic Components (.PDF Download) ... sync signals that support RGB video output to a typical VGA-interfaced computer monitor.