Features: 1. Compliant with PCI-Express specification version 2.0; Compliant with USB3.0 SuperSpeed specification version 1.0 2. Comply with xHCI specification version 1.0; Main control chip: Renesas uPD720201 chipset 3. the highest transfer rate up to 5Gbps, much higher than USB2.0 480Mb / s, up to 10 times; downward compatible with USB2.0, USB1.1, USB1.0 4. Transmission rate: 5000/480/12/1.5Mbps; built-in small 4PIN enhanced charging interface 5. Support USB hot-plugging and dialing function; support XP/2003/Vista/win7/win8/2003/MAC10.8 or above. Description: Product Usage: With the popularity of USB3.0, you can extend 4 USB3.0 ports by inserting this adapter card and installing the driver on the motherboard with MINI PCI-E slot! You can use 4 USB3.0 devices to copy each other's data. hardware requirements: A motherboard or laptop that supports MINI PCI-E. This product is a MINI PCI-E expansion card, you need to have a free MINI PCI-E slot on the motherboard to install and use the other MSATA slot can not be installed and used, do not plug into the MSATA slot. Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Material: PCB colour: As Shown Package Contents: 1 x Expansion Card Module 4 x screw Only the above package content, other products are not included. Note: Light reflection 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.