You can connect a Mac Mini with USB-C ports to the Odyssey OLED G8 monitor using a USB-C to DisplayPort cable, provided the Mac Mini supports DisplayPort output via USB-C. However, there have been reports of issues with some Mac Mini models not fully supporting this connection, so it's essential to ensure your specific model is compatible. The Ugreen USB-C to DisplayPort cable is suitable for this purpose if your Mac Mini supports DisplayPort over USB-C.