Mae'r cyllid ychwanegol sy'n benodol i Gymru yn adlewyrchu costau uwch gosod seilwaith ffeibr yng Nghymru, o ganlyniad i dopograffeg a dosbarthiad adeiladau.
Our new Wales-specific top-up reflects the higher costs of deploying fibre infrastructure in Wales, which is a consequence of topography premises distribution.