VGA Scan Line Generator Function: game video produces the scan line effect,classic,nostalgia,Perfect recall of CRT.15KHZ video display effect,Re-experience game classic ,Feel again the wonderful of the scan line. Colour:black Material:ABS Scan Line Generator Function Switch Description: VSYNC- - resolution adapter switch(Change the resolution requirement). ON or OFF- - The switch of the scan line effect. WIDTH- -Width switch(Dual or Singular scan lines). EVEN or ODD- -Scan line odd or even number switch . R G B- - Red Green Blue debugging(Mainly through three potentiometer debugging effect). Description of vertical signals: 1.If the scan line switch is ON,The scan line has no effect( darker),This is vertical signal is out of sync. 2.If you need scan line effect,Toggle (VSYNC) to switch sync, resulting in effect. 3.If you 't need the scan line effect,switch is set to OFF, restoration to normal VGA state.(Darken will restore brightness). Package Contents: 1 x VGA Scanline Generator Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.