A veteran correction officer who ran a “Jailhouse Shopping Network” that supplied Manhattan inmates with everything from drugs to cigarettes, phones and pliers landed six years behind bars Thursday.

Patricia Howard, 44, was sentenced in Manhattan Supreme Court for scheming with an inmate and his niece, gouging crooks up to $100 for a pack of smokes.

She once received a Christmas card thanking her for operating the “JSN” — and a written request from an inmate for muscle-building supplements.

Howard was charged with promoting prison contraband while working at the downtown Manhattan Detention Center known as “the Tombs” between December 2014 and May 2015.

She got some of the items from her cohort inmate’s niece, who was caught handing Howard a bag of crack, pot, three cellphones, pliers, loose tobacco and other items on May 9, 2015, officials said.