Hot selling 1080p 4 USB port adapter USB2.0 Extender 50m Share Issue Time Sep 25,2021 SummaryThis USB2.0 extender adopts USB standard 2.0 protocol, compatible with 1.1 protocol. It can break the constraint of computer host to USB cable length. Dtech Hot selling 1080p 4 USB port adapter USB2.0 Extender 50m