I think it had to do 1080p, it was basicly forced in france until 2015SCART was a european thing going way back. SCART supports s-video and component - pretty good so far - and supposedly resolutions up to 1080p.
View attachment 1403878
The block is way bigger than you think it is, it's as wide as a cigarette lighter is tall, it's like HDMI with gigantism.
Adapters looked like that without the ribbon cable, you plugged the RCA(red, white, yellow, maybe s-video) in the back and it was then clonked into the TV almost like a cartridge. It had the USB problem of trying to insert it the wrong way, turning it around, it is still the wrong way, turning it again and now it's right somehow. I remember using it for my SNES back when the SNES was top dog, so it's both old and great and it had a good sound when plugging it in.