Why Choosing 4 Ports Superspeed 5Gbps PCI Express USB 3.0 Expansion Card
-More choices on adding 4X USB 3.0 ports (5Gbps) on desktop computers for video, audio, photos or files transfer, but also provides stable and fast connection for normal USB device which includes web cameras, USB hub, mice, keyboard, smart phone, video capture, KVM switch etc.It is a low cost and effective way to add USB 3.0 Ports on desktop PCs. All add-on USB ports will not use mother baord USB Main Lan speed,just an extra bandwidth by PCI Express on computers, servers or NAS systems.
- USB 3.0 card provides sufficient power(8A max) supply for USB data device. Experience fast data transfer all the time. Running High power-consuming device simultaneously in all USB ports now.This expansion card is very easy to use and provides two additional SuperSpeed USB ports without sharing/reducing performance as an external USB hub might do.
-Unlike many other add-in USB cards, this PCI Express USB Host Controller Expansion Card has built-in power converters, so installation was just a matter of plugging the card into an open PCIe slot. No need to connect any wires inside the PC.

Technical Warm Tips
Users who running on WIN11, WIN10 and WIN8 don't need install a driver. For XP and WIN7, it needs download, unzip and install driver. (1. If running on WINXP, it is compatible with the installation content named USB3.0 / VIA / winxp / setup404c.EXE in the CD; 2. If running on WIN7, it is compatible with the installation content named USB3.0 / VIA / win7 / VIA_5.10A.EXE in the CD.)
Not support GPU
Not compatible for old PCI.
Not compatible for MAC OS.
Not support LINUX.