The Sony HXR-NX100 supports an SDXC memory card which is better than most video cameras of this type and age. Most camcorders that are a comparable age to it support an SDHC memory card. In addition, this Sony video camera support an MS PRO Duo and 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 actually the best supported memory card type amongst all comparable spec camcorders that have been on the market for a similar time to the HXR-NX100.
Amongst similar types of video camera the worst supported memory card type is SD.
SDHC cards are DS cards with a higher capacity of up to 32GB.