However, this mean that file systems and drivers must be block size-aware. Larger block size means that large files can be written faster, since more data can be written at one time. The USB-C MacBook and MacBook Pro models have drives that use native advanced format 4096-bytes-per-sector drives. Image Compatibility between older Macs and 2016 Macbook Pro and USB-C MacBook Winclone 5 customers intending to migrate Boot Camp from an older Mac to the USB-C Mac models like 2016 MacBook Pro or 2015 Mac Book should be aware of an incompatibility between the drive block size (see full article below) that prevents successful Winclone migration in Winclone 5.