HIGH EFFICIENCY - This pci-express card has reduced the number of adapter and transfer line, one line directly to the interface, effectively reduce the interface interference and wire loss, to ensure data reliability, so as to improve work efficiency! HIGH STABILITY - The main control panel of this PCI expansion card uses PCI-E interface direct power supply mode, and no external power line is needed, so that the main board power is free from external interference, and the stability is higher! COMPATIBILITY - PCI-E 1 to 6 Riser Card, Supported OS: MacOS, Windows 7/8/10/11. PORT QUANTITY - 6 X PCI-E USB, Only one cable to the slot, easy and convenient to settle and install.With IC heat radiator. Up to 5.0 Gbps Data Transfer Rate