Apple fast charge without mfi certification is not recommended, because it is likely to be unable to achieve the fast charge function, and if not certified, it may take a period of time, Apple iOS upgrade will pop up, indicating that no certified accessories can not be charged. Many third party cable purchases can be used at first, but cannot be used for a long time. So it's still recommended to buy a charging cable with an Apple chip.
An uncertified data cable is not compatible with all iOS systems, does not have the over-voltage protection of the original chip, and may suddenly pop up one day and cannot be used, or it may cause damage to the battery of the charging device.