With the USB plug A to USB socket A combination can be used to any USB 3.0 devices away from the actual USB ports of the computer / laptop / router / NAS to use.
This is exactly what I do in my Fritz box 7490 with me at one meter long cable.
I use the USB 3.0 ports on the router frequently alternating with USB sticks and hard disks and would not crawl all the time behind the desk nor overload the ports on the Fritz box from too frequent plugging and unplugging.
With the help of this cable, I now always an extended USB 3.0 socket the Fritz box are directly on the desk.
The cable is very high quality processed.
The 24K gold-plated A-plug is very stable in the router USB port.
The also gilded A jack has been perfectly connected all connected devices.
Whether the gold-plated connectors have a real value, I can not judge.
Especially with analog audio / video cables, a better and more stable transmission is thus ensured yes definitely.
With USB cables that are inserted and removed more often in everyday life, in my opinion, makes a gilt due to the high abrasion but a little less sense. Laudable it is still upgrading the cable so.
The additional use of oxygen-free OFC material, so very pure copper lines, the cable lifts additionally on inferior commodity.
The data transfer rates were moving normally on the technical possibilities of the Fritz box, which we all know, the USB 3.0 interface is not auslastet even begin.
I have been a maximum of 13 MB / s achieved what but definitely not located on the cable.
On my Synology NAS I come with the cable easily to more than 70 MB / s.
In sum, I can recommend this USB 3.0 extension cable a lot.
It does its job flawlessly and also the price performance ratio is okay.
I hope this review could assist you in your buying decision