A perfect solution for expanding PCI-e support in crowded systems or on motherboards with limited or minimal PCI-e ports. This card uses the Pericom PI7C9X2G bridge chip for PCI-E switching. 1-slot PCI-E 1X to 3 slot 1X riser card with high-speed USB 3.0 cable. Compliant with PCI express 2.0 & 1.1 specification.