Billionaire Elon Musk's brain chip company Neuralink has finally been approved for testing on humans.

Axar.az reports that Neuralink said that the US Food and Drug Administration (FDA) had given the green light to its first-in-human clinical trial, a critical milestone after earlier struggles to gain approval.

The FDA nod 'represents an important first step that will one day allow our technology to help many people' Neuralink said in a tweet.

It did not elaborate on the aims of the study, saying only that it was not recruiting yet. So, if you're keen to have a computer chip in your brain, you'll have to wait.