Assmann wsw sockets cable mount black 468 pin assmann wsw a 20040 this a 20040 rj10 socket cable mount black from assmann wsw is a tall right angled socket with rounded back and 4 pins manufactured with phosphor bronze contacts and nylon ul94v 0 insulator material this unshielded female socket offers 40momega max contact resistance plus an operating voltage of 125v dc assmann wsw a 20040 4 pin rj10 socket cable mount black