Jonathan Carter and Dadisi Williams, both 17, entered their pleas in court on Thursday. Sentencing is scheduled for the end of the month.
The computers were stolen back on February 21st. Police picked up their trail after an Action News viewer from Montgomery County saw the story of the crime on Action News and called police.
Earlier, he'd seen a MacBook advertised on Craigslist and met the seller at 59th and Sansom streets. He paid $400 for the computer.
The computer matched with one stolen from the high school.
Police then set up a sting by going on Craigslist and luring Carter, a West Philadelphia High School student, to 52nd and Market streets where they busted him. They found 28 more computers at his home.
The investigation then led them to Williams, a University City High School student.
Police say both have been arrested for theft before.