Depending on a double strand through the conduit should provide diverse double doses. There is a sufficiently large empty tube-type (25mm) over relatively short distances (5-10m), installed by an electrician professional (without "Handyman curves").
This cable is so thick and stiff that it could be move only with difficulty (and lots of lube). It tends thereby to "kinks" and wrinkles.
Problems there in accordance with an "extra meters", it is desired to "leave" at an appropriate location as a reserve. Is also a major Gewurstel.
Further, it is simply impossible to standards to connect a double socket.
The double strand is so extremely rigid that in the confined space of a flush-mounted socket is no clean "Hang up" is possible. I use good tools and high doses can even be adapted to the cable outlet position - it is with this cable only gefummelter bungling by force in it.
Yes, Cat. 7 cable has been designed for something more rigid, it takes a little more effort and skill. But this cable is inappropriate for a 7 Series too rigid and at least for double doses.