A developer preview of the new connector type was recently launched to prepare manufacturing partners for the component. Sources say the UAC connector may replace the use of Lightning and USB connectors in some cases.
Measuring in at 2.05mm by 4.85mm at the tip, the 8-pin connector is slightly less thick than USB-C, and near half as wide as both USB-C and Lightning. The space-saving connector is similar in shape to ultra mini USB connectors on the market that are often bundled as proprietary cables with accessories such as Nikon cameras.
The smaller connector may be used by accessory makers to save space in their designs. For example, the connector could be used for headphones cables. Apple will allow manufacturers to make Lightning to UAC, USB-A to UAC, and 3.5mm to UAC cables.