About the unit of CF card access speed.

1.0 usually measures the speed of a memory card as XX speed, where "one speed" represents the data transmission rate of 150KB/S, and a memory card with a speed of 40 (6MB/S) is usually called a high-speed card.

2.0 In theory, you can save 30M a second, but because your computer transmission and camera processing speed can't reach this theoretical value, it is generally impossible. As long as your platform is up to standard, just like wooden barrels of water, we will see how much water can be loaded, not the highest board, but the lowest.

3.0 Did you know that cameras also have a cache similar to computer memory? The photos taken are put in the cache first and then stored in the memory. Hehe, only your cache is big enough, you can take as many photos as you want.

4.0 4.0-133x per second19.5mb. This is a high-speed card. There are cameras as fast as continuous shooting. However, unless you are a sports photographer or a fan, it is no different for others to use slow cards.