If you are able to compare the 2 models whenever you get the chance,let us know if you find any differences...Believe it or not the cartridge connectors for the SNES and NES sides on the white model are better quality than the ones within the black.

For those wanting to get RGB..The RGB lines can be easily driven out with a 75ohm resistor and a 220uf capacitor for each output line from leg 21,leg 22 and leg 23 of the Samsung KA2198BD.There are plenty of data sheets for this particular encoder out there...Since the Retro Duo directly uses the s-video output lines from the encoder,leg 15 and leg 16 (C/Y) ,it would be wise to disconnect them from it,otherwise it may become corrupted and there will be no RGB mod for anybody!