Faster than the onboard ports

The card is much smaller than shown in the picture, it works knotless. Simply plug into an available PCI slot, screw, lid and switch on - ready. Win. Vista 64-bit detect the new hardware immediately (Gigabyte motherboard with AMD 790 chipset).
I bought the card to speed up the data transfer via USB, although can operate on the onboard ports all times, but the burden on the speed of the whole system. With the add-on card, the data throughput of originally 21.3 MB / s was (used same HDDs) to 28.7 MB / s.
Price / performance is in my opinion fully OK
Generally I would recommend anyone to operate card external HDDs, camcorders or cameras connected to a USB, since the data is easily transported much faster and the system is more relieved by far and one can thereby work undisturbed on.