I have already bought the second card Tecknet USB 5Port. The one on MSI 870AG54 and the second used on ASUS M5A78L-M. Connected are each several US 3TB hard drives. The Einstz as video and film archives has proven itself and runs without speed problems. The installation of the driver CD for Windows 7 takes a little longer and is error-free. On one of the cards I have connected a card reader with USB3.0. Can recommend the product.