Feature:4x USB3.0 controllers, one bridge controller, four channels, independent bandwidth, faster speed and more stable performanceEach interface is equipped with independent stabilizing capacitors to ensure smooth power supply for each interfaceEach interface is configured with independent protection insurance, a total of 9 insurances4 external usb3.0 ports + 2 built-in 19Pin sockets = 8 USB3.0 portsUSB3.0 pin header, each 19Pin socket can be connected to 2x USB3.0 interfaces (note that the cable must be purchased separately, not standard)Enlarge the heat sink for better heat dissipation and more suitable for long-term work