1. After inserting this riser card on the motherboard with MINI PCI-E slot and installing the driver, expand 2 USB3.0 ports! It can satisfy you to copy data with 2 USB3.0 devices. 2. It adopts the main control chip of USB3.0 , which is also the main control of the third-generation product D720202. 3. There are few expansion cards on the market that can support the LINUX system. 4. The SATA power interface must be plugged in to work. 5. The expansion card adopts too much capacitor, which greatly ensures the stability of USB power supply. Product parameters: Product name: USB3.0 front 19PIN MINI PCIE expansion card Product model: MPCIE2U-R02 Using master control: Renesas uPD720202 Support interface: MINI PCI-E Compliant with PCI-Express Specification Version 2.0 Compliant with USB3.0 SuperSpeed specification version 1.0 Comply with xHCI specification version 1.0 The highest transmission rate is up to 5Gbps, which is much higher than 480Mb/s of USB2.0, up to 10 times; Backward compatible with USB2.0, USB1.1, USB1.0 Transmission rate: 5000/480/12/1.5Mbps Built-in small 4PIN enhanced power-on interface Support USB hot plug function Support XP/2003/Vista/win7/win8/2003/MAC10.8 and above systems, etc. Driver installation instructions: Open the supporting CD folder --//D720201-2 and double-click the .exe file inside to install it Hardware requirements: a motherboard or laptop supporting MINI PCI-E Colour:Blue Material:PCB+metal Package Contents: 1 * USB3.0 expansion card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.