Clones of 2014

Hyperkin's RetroN5 use Retrode technology with custom made Android emulator.
output HDMI 720p.

Retro-Bit's Super Retro Trio is successor of Retro Duo
Super Retro Trio's S-video is faked, its uses composite video and audio is faked enhanced.
game compatible is same as other System-On-Chip clones when use legit carts.
EverDrive does work.

Clones of 2013

RetroGEN Adapter (Genesis on SNES)
Video: Video sync problem, can be fix by soldering, 3.5mm to RCA cable (heavy mod to legit snes output within snes)
Audio: Audio channels are reversed
Game: Compatible with most (Genesis) games, including master games, EverDrive does work.

RetroPort Adapter (NES on SNES)
Video: Colors are bright and vibrant but No white balance, 3.5mm to RCA cable (heavy mod to legit snes output within snes)
Audio: Dual mono, doesn't support expansion audio
Game: Compatible with most games, EverDrive does work.

Super Retro Advance Adapter (GBA on SNES)
Video: Full screen, 3.5mm to RCA cable (heavy mod to legit snes output within snes)
Audio: Dual mono, restore stereo can be fix by soldering
Game: Completely lacks GB and GBC support