Discoveries today have proven that the redesigned Mac mini is the first Mac with an SDXC card slot. Visiting the slot in Disk Utility with an SD card inside shows an "Apple SDXC Reader" and thus that it has more room than other Macs limited to SDHC. The slot gives headroom for cards from 64GB through to 2TB in size and uses faster transfer speeds of up to 104MB per second on most of the still-early readers.
