4 Things to Know About Thunderbolt 3 Port Failure on a 2016 MacBook Pro

All four Thunderbolt 3 ports are soldered directly to the logic board. There is no modular port assembly to swap individually.

A single failed port requires replacing the entire logic board. This is a costly repair, often exceeding the laptop’s resale value.

The design hurts long-term repairability. A simple port failure can render the machine uneconomical to fix.

This issue is specific to the 2016 model. Later MacBook Pro models use a different port design that is more serviceable.