Court documents show 20 counts of felony larceny against Michael Scott King, 28, of 104 Ramsey Ct. Apt. L in Cary, and 24 counts against Richard Levell Keating Jr., 26, of 4607 Mitchell Mill Road in Wake Forest.
Keating was also charged with a probation violation and breaking and entering.
Investigators said thieves target air conditioning units for the copper wiring they contain.
King was being held on $475,000 bond. Keating's bond was set at $165,000.
Keating was on probation for June 2009 convictions for hit-and-run and assault on a female, according to state Department of Correction records. He also has a previous larceny conviction.