The Vixia HF M400 supports an SDXC memory card which is better than the SD memory card supported by most video cameras that were released more than two years ago. In addition, this Canon camcorder supports an SDHC memory card. SDXC cards are SD cards but with a much higher capacity and faster processing speeds. They have a maximum capacity of 2TB (Terabytes).
This video camera's memory card type (SDXC) is in fact the best supported memory card type amongst all camcorders of a comparable age and type to the Vixia HF M400.
Amongst comparable types of video camera the worst supported memory card type is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.