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 between

But even USB 3.0, but also the theoretical bandwidth 5Gbps(625MB/s), one into four then remove the loss would only 150MB/s, and even PCI-E 1.x single-channel bandwidth also has 250MB/s, So this stuff more than enough to give you the best slots, there will not be enough bandwidth, not only for the performance requirements of the place

Several Divided PCI-E 1X slot all is gen2 mode, even if gen1 previously, it can be ok