PCI-E 4 port usb 3.0

[Phen8210]

What are the difference between this usb 3.0 and the one on motherboard?

For example, will the four ports on the cards be able to obtain the same speed? Or if one is active transferring file the other port will bottle neck?

I don't have enough usb 3.0 ports on my computer that's why looking for something i found like that
http://www.lazada.sg/4-port-usb-30-...N49f2i_T9QaAv3X8P8HAQ&wt_dp=sg.display.google

 

[enenyi]

What are the difference between this usb 3.0 and the one on motherboard?

For example, will the four ports on the cards be able to obtain the same speed? Or if one is active transferring file the other port will bottle neck?

I don't have enough usb 3.0 ports on my computer that's why looking for something i found like that
http://www.lazada.sg/4-port-usb-30-...N49f2i_T9QaAv3X8P8HAQ&wt_dp=sg.display.google

It can maximum pull 5Gbps speed from the PCIe lane. Means that if u have 1 USB3.0 transfer, max speed. If u have 2 USB3.0 devices transferring concurrently, effective speed could be halved. If all 4 USB3.0 devices used concurrently, effective transfer speed could be quartered or even end up with less than a quarter, depending on how this card queues up the data for transfer.

 

[Ctrl_Alt_Del]

Should get newer usb 3.1 instead.

 

[dannytan87]

USB is using bus topology, meaning polling...... 1 cycle through all the USB port for 1 collective poll...... the more usb input the more poll request is done..... unlike thunderbolt or firewire (peer to peer) USB is a master to slave relationship.... will bog down.....