The Lightning connector is used to connect Apple mobile devices like iPhones, iPads, and iPods to host computers, external monitors, cameras, USB battery chargers, and other peripherals.

The plug is indented on each side to match up with corresponding points inside the receptacle to retain the connection.

Apple was given a partial transfer of the Lightning trademark, suggesting that Harley-Davidson likely retained the rights to use the name for motorcycle-related products.

[26][10] Apple offers various adapters that allow the Lightning connector to be used with other interfaces, such as 30-pin, USB, HDMI, VGA, and SD cards.

Lightning connectors contain an authentication chip that makes it difficult for third-party manufacturers to produce compatible accessories without being approved by Apple.

[31] Apple has claimed that it continues to use Lightning because replacing it would supposedly produce "an unprecedented amount of electronic waste".

[32][33] Some reviewers, like Business Insider senior tech correspondent Lisa Eadicicco, have posited that it is simply because Apple wants to continue profiting from its proprietary chargers and accessories.

[34][failed verification] Apple introduced the MFi Program to increase the quality of third-party accessories and consumer confidence.

[35][36] A known failure mode of Lightning plugs is power contacts turning black over time, sometimes causing the affected side of the connector to cease functioning.

The remaining gold plating wears off mechanically and through further sparking, progressively exposing the corroded base metal, which appears black.