https://wccftech.com/mfi-usb-c-lightning-cables-coming-2019/

If you were planning to fast-charge your iPhone 8, iPhone 8 Plus and iPhone X, you would need a USB-C to Lightning cable, but the only certified accessory that you can purchase is from Apple. Thankfully, if the latest information holds true, accessory manufacturers are going to start making their own USB-C to Lightning cables and they are going to be MFi certified. So what is going to be the drawback? They might end up being more costly than the cables Apple sells right now.

According to a report from Japanese website Mac Otakara, accessory makers will release these MFi USB-C to Lightning cables in mid-2019, but the way they are going to be made is a lot of different than how Apple makes its own cables. This will lead to a cost increase of $0.5, and the reason for this bump in price has been highlighted below.