Modern MacBook Pros, among other things, are usually blamed for the lack of a memory card slot. And numerous rumors indicate that new models with the new Apple Silicon platform will receive such a slot.
The source claims that we are talking about a slot for SD UHS-II cards. Recall that this standard implies a data transfer rate of up to 312 MB / s. Considering modern video recording formats and the size of the resulting files, this speed will definitely not be superfluous.
The new MacBook Pros will be the first Apple mobile PCs to support UHS-II SD cards, but not the first PCs in general. This standard was supported by the already retired iMac Pro and the 27-inch iMac.