Vli VL805-Q6 and axis AX88179 chipsets. Compliant with Intel's extensible host controller interface (xHCI). Integral power connector for Supplying +5V power to USB Ports. Supports bulk only transfer (BOT) mode and USB attached SCSI Protocol (UASP) mode. Support full duplex operation with IEEE 802.3 x flow control and half duplex operation with back-pressure flow control