The space-saving UAC measures 2.05mm by 4.85mm at the tip, and is similar in shape to the ultra mini USB connectors that come with accessories such as Nikon cameras, according to 9to5Mac.
It would be used as a headphone-side connector, both male and female, to provide a universal connection, Apple Insider reports. Interchangeable cables would allow for the accommodation of a host device, such as a Lightning, USB-C, or 3.5mm headset jack. While the name may sound unfamiliar, the connector design isn’t actually new. It’s currently available on the market under a slew of different names from other firms, like Mitsumi’s ‘Ultra Mini Connector’ and Nikon’s ‘UC-E6’ cable. According to ArsTechnica, the move stems from the requests of licensees in its MFi program, rather than Apple’s efforts to push a new connector. And, while it could add another type of connection to the mix, it isn’t meant to be a complete replacement for the others.
The patent, published by the US Patent and Trademark Office today, is listed as a 'charging apparatus for wearable electronic device.' The wearable charger will likely use a magnetic charge point for easy snap on / snap off access. Two different charger designs are described in the patent.