Fresco Logic FL6000 USB 3.0 F-One Controller Drivers Version 1.3.37177.1. - FL6000 with F-One™ technology is a patented approach to attach multiple USB2 peripherals to a single SuperSpeed-only port. F-OneTM mode implies a “Superspeed”-only upstream port. The FL6000 can also operate in legacy mode, in which case it acts as a standard 4-port SuperSpeed Hub.