The Vixia HF R500 supports an SDXC memory card which is better than the SD memory card supported by most camcorders of this type and age. This Canon video camera also 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).
An SDXC memory card is actually the best supported memory card type amongst all video cameras of a comparable age and type to the Vixia HF R500.
Amongst comparable types of camcorder the worst supported memory card type is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.