The MacBook accessory company Hyper has posted a page on its website for something it calls the "mother of all USB hubs". It has a total of 18 USB ports, 4 SD card slots, a range of legacy monitor ports and, best of all, a 3.5-inch floppy disk drive. If this method of expanding on limited ports in your ultrabook sounds too good to be true, it probably is.
https://www.notebookcheck.net/Hyper-announces-a-USB-type-C-hub-with-a-3-5-inch-floppy-disk-drive.415575.0.html