Engineers will ultimately lay around 17, 500km of optical fibre cable and install around 3, 000 new fibre broadband cabinets in streets across Wales to improve broadband speeds and benefit homes and businesses.
They are designed to make it easier for BT and others to install 1.4m (4ft 7in) tall cabinets, and retrofit existing ones with new outer shells without running the risk that they will be opposed by the public.