Internal USB 3.1 Gen 1 Type C + 2 x USB 3.0 Port Hub Front Panel w/ HD Audio Mic Jack for Desktop PC Case 3.5" Floppy Bay Mount|usb 3.0 port hub|port hubusb 3.0 port - AliExpress
USB Type-C and USB 3.1, USB 3.2, USB4 and USB4 V2 Explained
Amazon.co.jp: [USB-IF Certified] Plugable USB-C Cable 1m, USB Type C USB 3.1 Gen 2 (10Gbps) Compatible : Computers