4-Port USB 3.0 Host Adapter Card with 4x Independent USB 3.0 Controllers. Neousys PCIe-USB340 is an 4-port USB 3.0 host adapter dedicatedly designed for industrial and vision applications. USB 3.0, or SuperSpeed USB, is an emerging bus technology to deliver ten times of data rate over USB 2.0, and is particularly useful for high-speed data storage and imaging devices.Most off-the-shelf USB 3.0 cards implement multiple ports with single USB 3.0 co..