Sega Genesis Mini Classic Edition 4-Port USB Hub Mini Gaming Console Replica | eBay
Sega Genesis 16-Bit Mini Classic Game Console USB Hub | Free Shipping
Game USB Drive Gaming Box Stick with USB Hub for Genesis Mini/Sega MD Consoles Support Instant Archive K1KF - AliExpress
Amazon.com: AuviPal 3-Port Micro USB OTG Hub Adapter (3 USB Ports + Power Port) for Fire Stick 4K, Playstation Classic, Raspberry Pi Zero, Sega Genesis Mini, S/NES Classic Mini and More -
Pi in a Sega Genesis USB Hub Build - RetroPie Forum