A federal judge on Friday gave final approval to the unusual settlement reached between Apple, 33 states and class action counsel in the electronic book price-fixing litigation.

Ahead of an all-or-nothing appeal to the U.S. Court of Appeals for the Second Circuit on Southern District Judge Denise Cote's (See Profile) 2013 liability finding against the computer giant, the judge approved the settlement reached in June that calls for Apple to pay $450 million should her ruling be upheld.