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Micro SD Cards Explained: How To Select The Best For You?

Are all Micro SD cards same? How do you select? If you are wondering what are the differences and how to select best Micro SD for your device, read our tech tips. We will explain you in details, in an easily understand-able way.

Here are few tips that will empower with the basic understanding of classes and types of Micro SD cards available in the market, and eventually help you to select the best one for your device.

SD, SDHC and SDXC – Meaning and Capacity

  • SD (Secure Digital) cards are meant for storage up to 2GB, use FAT 12 and 16, and are older version.
  • SDHC (Secure Digital High Capacity) are meant for storage from 2GB to 32GB, use FAT32, and are newer version.
  • SDXC (Secure Digital Extended Capacity) are meant for storage from 32GB till 2TB, use exFAT, and are latest version.

The type and capacity of a Micro SD card is printed on the card itself which you can easily understand.

Data Writing Speed – Speed Class and UHS Speed Class

The speed class of the Micro SD indicates the data writing performance during continuous recording or streaming. The Speed Class and UHS (Ultra High Speed) Speed Class are not inter-compatible generally. The performance of the card will also depend on the device specification into which it is installed.

There are four Speed Classes – 2, 4, 6 and 10 designating 2, 4, 6 and 10 MB/s of minimum data transfer respectively.

There are only two UHS Speed Class – 1 and 3 indicating 10 and 30 MB/s of minimum data transfer.

The speed class of a Micro SD card is printed on the card itself where a number is written inside a C for Speed Class and U for UHS Speed Class.

Also Read: How to detect and stop keylogger on your computer

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