The rear camera system on the iPhone 14 Pro and iPhone 14 Pro Max models has been improved to shoot 48-megapixel ProRAW photographs, which preserve more detail in the image file for greater editing options. According to Apple, 48-megapixel ProRAW images are extraordinarily hefty files that average around 75MB each and occasionally considerably more.
Despite these enormous image sizes, we have confirmed that the Lightning connector on the iPhone 14 Pro models is still only capable of USB 2.0 speeds of up to 480 Mbps. As a result, it will take a long time to transfer 48-megapixel ProRAW photos in their entirety to a Mac or other device using a Lightning cable.
Although the Lightning cable is still a barrier, Apple advises utilising iCloud Photos to access ProRAW images in full resolution on a Mac or other Apple devices, or using AirDrop to wirelessly transfer photos from an iPhone.
The initial iPad Pro’s Lightning connector enabled USB 3.0 back in 2015, which according to the spec at the time was capable of up to 5 Gbps speeds, but Apple appears to have decided against going this way for the iPhone. Fortunately, it appears that all iPhone 15 versions will include USB-C ports rather than Lightning, which should result in speeds of up to 10 Gbps or perhaps up to 40 Gbps with support for Thunderbolt 3.