The GZ-EX310 supports a better memory card type than most camcorders that have been available for more than two years. This video camera supports an SDXC memory card, whereas most video cameras of this age and type support an SDHC memory card. In addition, this JVC video camera supports an SD 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 in fact the best supported memory card type across all medium sensor size camcorders that have been around for around the same time as the GZ-EX310.
A MicroSDXC memory card is the worst supported memory card type amongst comparable types of video camera.
SDHC cards are DS cards with a higher capacity of up to 32GB.