The Panasonic HS900 supports a better memory card type than most camcorders that were released more than two years ago. This video camera supports an SDXC memory card, whereas most medium sensor size video cameras that were released more than two years ago support an SD memory card. This Panasonic 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).
This video camera's memory card type (SDXC) is in fact the best supported memory card type across all camcorders that have been available for a comparable time to the HS900.
The worst supported memory card type amongst similar types of video camera is MicroSDXC.
SDHC cards are DS cards with a higher capacity of up to 32GB.