CSL - 6m TAE connection cable router DSL / VDSL | RJ45 Western plug to TAE-F plug | VDSL | DSL | suitable for direct connection of DSL routers at the telephone socket | Twisted Pairs for effective protection against interference | 6m | (Electronics)
I got my router by about 6 m laid, and have no power loss, it had previously tested afterwards, and must truly say that the cable also is of good quality, cable plug firmly and stably seated in the socket.
Have a Fritzbox 7490 and had taken the provided cable, the CSL taken 6M TEA, thereby saving you look at the clutter with the included Y connector, I am 1und1 customer, and have ISDN.