The Vixia HF R400 supports an SDXC compatible memory cards which is better than most camcorders of a comparable spec and age to it. Most small total megapixels camcorders that came out around the same time as it support an SD compatible memory cards. In addition, this camcorder supports an SDHC compatible memory cards. 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 actually the best supported memory card type across all video cameras of a similar age and type to the Vixia HF R400.
The worst supported memory card type across similar types of video camera is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.