This article received in due time (as usual with amazon) this pci usb board 3 four ports is easy to plug into the motherboard of my computer, the only complaint I will make on product descriptions there is n indicates that additional power must !!! molex kind (that we can control at the same time as this card) there is also possibility to take a non-used in computer power (which is scheduled for another internal hard drive) this card is white plate and provided with 4 round connections it is to the supply of computer case. for my part it works very well !!! in relation to the flow usb 3 c is (a file of 4.57 gb) about 50 seconds usb 2 over 3 minutes 45 seconds, so astonishing !! on this card can also connect USB 2 hard drives as well as a USB printer that will give a flow rate 2 usb 2 (thus slower) I recommend this article that has good value for money to all those who do not want to ruin s equip !!!!