What is a Flash Card?

A flash card is a memory that uses flash memory technology to store electronic information. It is generally used in digital cameras, handheld computers, MP3 and other small digital products as a storage medium, so it looks small and looks like a card, so Call it a flash card. According to different manufacturers and different applications, the flash memory card may be SmartMedia (SM card), Compact Flash (CF card), MultiMediaCard (MMC card), Secure Digital (SD card), Memory Stick (Memory Stick), XD-Picture Card (XD card) and micro hard drive (MICRODRIVE). Although these flash cards have different appearances and specifications, the technical principles are the same.

Flash Card

The development history of China's flash memory card is a history of oligarch competition. Since the launch of the Chinese digital camera market, flash memory cards have begun to enter China, but their prices have remained high until the Chinese mobile phone market has been upgraded on a large scale

Flash card can store data volume reference value
Flash card capacity		32GB	16 GB	8GB	4GB	2GB
Still photos (* 1)	3.2 million pixels [0.9MB / sheet]	32,760 sheets	16,320 sheets	8,160 sheets	4,080 sheets	2,040 sheets
	5 million pixels [1.4MB / sheet]	20,330 sheets	10,160 sheets	5,080 sheets	2,540 sheets	1,270 sheets
	6 million pixels [1.7MB / sheet]	16,850 sheets	8,420 sheets	4,210 sheets	2,100 sheets	1,050 sheets
	8 million pixels [2.1MB / zhang]	13,550 sheets	6,770 sheets	3,380 sheets	1,690 sheets	840 sheets
	10 million pixels [3.1MB / zhang]	9,510 sheets	4,750 sheets	2,370 sheets	1,180 sheets	590 sheets
	10 million pixels [3.1MB / zhang]	7,760 sheets	3,880 sheets	1,940 sheets	970 sheets	480 sheets
video	VGA (640x480) [3Mbps]	21 hours 20 minutes	10 hours and 40 minutes	5 hours and 20 minutes	2 hours and 40 minutes	1 hour and 20 minutes
Digital music	AAC 128kbps [4 minutes / track]	7,860 songs	3,930 songs	1,960 songs	980 songs	490 songs

(Note: the actual file format shall prevail)