Someone can recommended a good video quality cable for HVC-101 ? i don know where buy it online or what cable is? RGB? Scart?
Famicom doesn't do RGB, and SCART is a type of plug (that can carry composite, RGB and sound). HVC-101 uses the same composite AV cable as Super Famicom/SNES, Nintendo 64 and Gamecube. AV cable is the one with a yellow, white and red RCA head and optionally an RCA->SCART adapter attached to it.
The AV Fami uses the same multi-out connector that the SFC/N64/Gamecube uses - proprietary connector on one end, composite plugs on the other.
The quality of 3rd party ones is probably a bit variable, try to find an original:
http://www.amazon.com/Super-Nintendo-SNES-64-N64-Gamecube/dp/B0014B1S5U/ref=sr_1_2?ie=UTF8&qid=1455708143&sr=8-2&keywords=nintendo+multi+out
Edit: Ninjad ;D