HDMI to Scart Converter HD Video Converter, VGA/SCART/Component Video Input and HDMI/DVI/Analog Audio Output, Old Game Console HDMI Converter for SFC/MD/SS/PS / PS2 / Xbox/WII : Amazon.ca: Electronics
Sega Master System MK1 & Mega Drive MK1 to RGB SCART AV Cable (Retro Gaming Cable)
video - SCART to VGA adapter - green picture - Electrical Engineering Stack Exchange