Can you get a PCI-X USB Card?

[Pulsedriver]

Hiya,

I need more USB ports for my Lanparty Ultra-D

I dont have any spare PCI slots though, I wondered is there anything I can buy for the spare PCI Express slot (the one nearest the CPU behind the GFX card slot) ?
Furthest right on this picture;

 

[Pulsedriver]

I cant use the motherboard onboard ones as my case has the sockets on the top, and I dont want the top cover open all the time, i'd rather all wires be at the back.

 

[Pulsedriver]

I got one , but it doesnt work

It woulda been ideal

I tried plugging it into the header, it didnt work, tried it the other way round...Same