The HC-V270 supports an SDXC memory card which is better than most small sensor size camcorders that came out around the same time as it. Most video cameras of this age and type support an SD memory card. In addition, this video camera 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 in fact the best supported memory card type amongst all comparable spec video cameras that have been available for around the same time as the HC-V270.
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.