Delock rj45 port doubler 1 x rj45 male a 2 x rj45 female
Delock rj45 port doubler 1 x rj45 male > 2 x rj45 female (2 x isdn)
Delock rj45 port doubler 1 x rj45 male > 2 x rj45 female (2 x isdn)