TOOGOO(R) FAST USB 3.0 PCI-E PCIE 4 PORTS Express Expansion Card Adapter 100% brand new and high quality Super fast and high-capacity transfer solution, stable and reliable Fully compatible with PCI Express Base Specification Revision 2.0 Supports simultaneous operation of multiple USB 3.0, USB 2.0, and USB 1.1 devices Supports 4 downstream ports for all speeds