WILMINGTON, Del. — For the first time Tuesday, first son Hunter Biden’s notorious “laptop from hell” — whose scandalous contents were first reported by The Post nearly four years ago — was shown to a jury of his peers, with federal prosecutors making it a key part of their case accusing the president’s child of illegally owning a gun while addicted to drugs.

The pivotal moment unfolded after prosecutor Derek Hines brought out a plastic-wrapped laptop, walked it across the courtroom and presented it to his first witness, FBI Special Agent Erika Jensen.

Jensen took the MacBook Pro 13 and verified — after looking at the serial number on the back — that it had, in fact, belonged to President Biden’s son.

Prosecutors from the office of special counsel David Weiss must prove to jurors that Hunter, 54, intentionally lied on a gun application form by claiming he didn’t do drugs when he purchased a Colt Cobra revolver on Oct. 12, 2018 — a time when prosecutors say he was in the middle of a serious crack-cocaine dependency.

The feds were quick to begin using information extracted from the laptop to lay out a timeline of when they say Hunter was using before and after he bought the firearm — which he only owned for 11 days.

Federal Judge Maryellen Noreika ruled before trial that prosecutors do not need to prove the Biden son was high when he bought the gun but only that he was generally using around that time.

Jensen explained that information on the computer was cross-checked against information taken from the Biden scion’s iCloud account — which investigators had obtained through a subpoena issued to Apple.

FBI agents were able to extract mountains of data from the Macbook, including text messages and WhatsApp messages, detailing Hunter’s drug use.

On Tuesday, the jury was shown a 2018 message that Hunter sent to his purported dealer, Clifford O’Brien, saying, “Can you get baby powder, the real soft stuff.”

In a message from April 28, 2018, the first son sent a photo of a digital scale with a heap of white powder on top, implying he’d been ripped off in a cocaine transaction.

They were also shown two video clips from the laptop depicting a shirtless Hunter.

In one clip, the first son held a crack pipe while lounging on a bed and in the second, a pipe could be seen behind the younger Biden.

The panelists were also shown angry text messages that Hunter sent to Hallie Biden — his former sister-in-law turned lover — on Oct. 23, 2018, the day she found the .38 inside his car and threw it away.

“Did you take that from me…are you insane?” Hunter accused in one message.

“This is no game. And you’re being totally irresponsible and unhinged,” he added.

“Tell me now” he said. “Call me!!!!”

The younger Biden famously dropped off his laptop at a Wilmington repair shop in April 2019 and never returned to pick it up.

Shop owner John Paul Mac Isaac handed the hard drive over to the FBI after unearthing evidence of illegal financial activity, drug use and patronization of prostitutes.

Before the feds picked up the laptop in December 2019, Mac Isaac made a copy of the hard drive, which he gave to attorney Robert Costello in August of the following year.

Former New York Mayor Rudy Giuliani, then a client of Costello’s, provided The Post with a copy of the hard drive in October 2020, leading to a series of exclusive stories detailing the Biden family’s overseas business interests and the role the current president may have played in making money for his relatives.

Hunter has pleaded not guilty to three felony charges in the Delaware gun case. He faces up to 25 years imprisonment if convicted.