iPhone 15 USB-C cable may be limited to USB 2.0 speeds
According to the information given, the iPhone 15 USB-C cable will be 1.6 meters long, thicker and more durable. Apple will keep the same USB 2.0 data transfer rates as Lightning. USB 2.0 transfer rates are limited to 480Mbps. Of course, the model shown may be the flat iPhone 15 model. iPhone 15 Pro and 15 Pro Max models can provide higher speed data transfer. Pro models may come with USB 3.2 or Thunderbolt 3 support.
According to the data provided by Majon Bu, the iPhone 15 USB-C cable will not have the MFi (Made for iPhone) restriction as previously said.