Composite video converter to connect my old Nintendo system?

[Gamb!t]

Hey guys. I found my NES and a bunch of games with it! Most excited to play TMNT as I never beat it as a kid. It's gotta be the hardest video game ever made lol! Problem though is I can't connect to my TV cuz it only has hdmi ports. My NES only has those red/white/yellow cables. Friends been telling me to get a composite video converter and showed me this https://bzbexpress.com/CON-AV-HD4K-Comp ... exPro.html . If this is what I need, is $100 reasonable? I see some on amazon for like $15 https://www.amazon.com/GANA-Composite-C ... +converter . Why the big price difference? Can I just go with the cheapy one? Thanks for the help!