You need to install the VLI USB3.0 driver for your computer first

Interface: Single-Lane (x1) PCI Express Gen2 Mode 

Port: 4 external USB3.0 ports 

Low speed (1.5Mbps), full speed (12Mbps), high speed (480Mbps), super speed (5Gpbs) 

Power input: SATA or IDE power connector 

Power output: +/-5V / 900mA (each port) 

Compatible: USB1.1/2.0/3.0 

Operating systems: Windows7/8/10(32/64bit)