Function and quality is right

I ordered the adapter cable equal to 2x.
Once a new case to be connected to USB 3.0 front panel with a motherboard which has only USB 2.0 header and once a case with USB to connect 3.0 Front Panel with a motherboard which although already a USB 3.0 header but this is so closely related to the third PCIexp connection that I could not use this if I use the USB 3.0 headers.
With the adapter, although only USB 2.0 speeds are achieved but these should be sufficient for most devices such as USB sticks, WLAN sticks, smartphones and even for most external hard drives.