Flyover® QSFP Cable Systems Samtec Flyover® QSFP (FQSFP) Cable Systems provide improved and extended signal integrity by flying critical data over lossy PCB materials. Critical high-speed signals are flown directly to the panel via an ultra-low skew twinax cable, offering architectural flexibility. Featuring an ultra-high-density design, Flyover QSFP Cable Systems from Samtec include sideband signalling via press-fit contacts to help increase airflow and multiple 'End 2' options that enable maximum design flexibility.