Professional or practical What are the advantages of high-speed memory cards?

In this era of pursuing high efficiency, we are always in a hurry, and we want to store data in seconds. In view of the needs of users, manufacturers have launched more and more high-speed storage tools. For example, the maximum read speed of USB3.0 USB flash disk reaches 260MB/s, the read/write speed of SSD exceeds 550MB/s, and even the new mechanical hard disk reaches 200MB/s. And what we want to say today is that the speed of the memory card has reached 240MB/s for writing and 280MB/s for reading, which is a great surprise in digital terms. (In addition, CF card It has always been very fast, so this article focuses on SD card And MicroSD card).

Professional or practical What are the advantages of high-speed memory cards?

Before discussing the advantages of high-speed memory cards in depth, let's take a look at which cards in the current market have extreme speed. In fact, as early as at CES2011, SD Association officially announced its new "UHS-II" industrial standard specification, which made the transmission speed of SD card instantly rise to 312 MB per second, and it was only half a year since the release of "UHS-I" industrial standard. UHS-II is also called SD4.0 in terms of specifications and standards. This technology improves speed by adding the second row of pin signals, and fully maintains compatibility with existing SDs. Toshiba and Sandisk have launched UHS-II memory cards this year.

Toshiba EXCERIA Pro card

Sandisk UHS-II U3 SD Card (picture from Jingdong Mall)

I believe you can see a key point from the above figure: U3 symbol. What does this mean? The access speed of memory cards that meet the U3 standard has jumped significantly, with the reading speed up to 90MB/s per second, which is 9 times the speed of the standard class10 memory card Intelligent mobile phone Or the owners of top audio and video devices such as tablet computers can simply access high-quality audio and video files, digital photos, and even 3D games. The lifelike 4K * 2K ultra-high image quality will allow you to enjoy a feast of visual experience and meet your rich entertainment needs at any time.

Toshiba EXCERIA U3 TF card

Creative U3X memory card

The speed of these memory cards is different, but they are the best in their respective product lines. It is certainly no problem to choose these memory cards for video recording. If you want to buy a professional, the price must be high. Apart from the problem of money, what is the advantage of high-speed memory card?