The haul had an estimated value of €47.5m, Mr Langella said, a figure which includes the value of the consoles and hundreds of licenses for the pirated programs.
They were "all from China" and were imported to be sold in specialised shops or online, Mr Langella said.
All the devices were fitted with non-certified batteries and electrical circuits and did not meet EU technical or safety standards.
The seized games have been destroyed.
Nine Italian nationals have been arrested and charged with trading in counterfeited goods. If found guilty, they face up to eight years in prison.
They seized a bunch of Linux devices with retroarch and roms that were probably actually worth a couple hundred thousand at market prices for these devices. You can get a handheld thing for under $40-50 on aliexpress and it comes filled with hundreds or thousands of roms and rom hacks.
Edit: Since I don't in any way routinely buy from these guys, there's no way I can possibly let y'all know later, when the supply is in no noticable way diminished by this.