If you need more than one PCI-E x1 slot on the motherboard was not any so much, it touches you can think about it. It consists of two parts, one main card, interface installed via PCI-E X1 on the motherboard, two equipment cards, both of which are connected together via USB 3.0 cable. The device card also uses the United States Pericom Pericom PI7C9X bridge chip, for switching PCI-E, PCI-E