I bought this cable to mount the walls to replace a telephone wire to make me a reliable local network between rooms. Disassembly, no surprise, the cables are shielded in accordance with the requirements of the SSTP standard. An aluminum foil painful enough to undo (good) surrounds the pairs and is stuck between the wires of the same pair, then a metal braid surrounds the entire cable. Finally, the plastic sheath is loose, allowing a comfortable yarn twist, but beware not to use the shield to handling strength! Only one tiny thing to deplore the color codes of the cables are not fully respectés.Les first son of each pair are white without distinction of color, it will therefore be wired to an outlet keeping the pair well together so it identify: only negative at all insurmountable, simply follow your assembly instructions. Expected performance with return and proceeds received in just over 24 hours. Good job.