The AG-AC90 supports an SDXC memory card which is better than most camcorders that have been on the market for a comparable time to it. Most medium sensor size video cameras that were released around the same time as it support an SD memory card. In addition, this Panasonic camcorder 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 camcorder's memory card type (SDXC) is actually the best supported memory card type across all video cameras of a comparable age and spec to the AG-AC90.
Across comparable types of camcorder the worst supported memory card type is MicroSDXC.
SDHC cards are DS cards with a higher capacity of up to 32GB.