Apple’s iPhone 15 Pro and Pro Max will bring a party trick to the table this year: blazing-fast data speeds via their new USB-C ports. But now we not only know how fast it will be thanks to a new leak, but that it will do something no one expected.

“The port on Pro’s will be Thunderbolt 3. I know there’s a lot of speculation in our community, but it’s TB3,” reveals anonymous insider analyst941, who leaked accurate data about the Dynamic Island ahead of the iPhone 14 Pro launch last year.

Thunderbolt 3 operates at up to 40 gigabits per second (Gbps), that’s equivalent to 5,000 megabytes per second (MBps). By comparison, the Lighting port on all current iPhones is limited to USB 2.0 speeds, which is 480 megabits per second, equivalent to 0.48 Gbps / 60 MBps. It’s a stratospheric upgrade.