SD Card Speed Classes, Sizes and Capacities – All You Should Know

However, you have to admit that SD cards are not created equally.

Different types of SD cards have different components and can be used on different devices.

Now, lets talk about them respectively.

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There are 4 types of speed classes:

1.

Standard Classes

Class 2:It is the slowest SD card speed class.

The minimum write speed of this class is 2MB/s.

Class 4:The minimum write speed of this class is 4MB/s.

This is suitable to record high-definition content and commonly used on smartphones, tablets, and digital cameras.

Class 6:This speed is pegged at 6MB/s.

Class 10:The minimum write speed of his class is 10MB/s.

It is the fastest SD card Speed class which is suitable for recording Full-HD content.

UHS

The full name of UHS is Ultra High Speed.

There are two special speed classes and they are UHS 1 and UHS 3.

They are more expensive than the standard classes and their minimum write speeds are 10MB/s and 30MB/s respectively.

SD cards with these two kinds of speeds are specially designed for professional use such as 4K-capable cameras.

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Video Speed Class

The video class is totally a new one.

The Video Speed Class 10 (V10) SD card has a minimum write speed of 10MB/s.

While, V30 is 30MB/s, V60 is 60MB/s and V90 is 90MB/s.

The SD card with this speed class is specially used for recording 8K video content.

To know an SD cards class, you might just look at the body of the card.

The standard Speed Classes are denoted as a capital C with a digit embedded in it.

The special UHS classes are denoted as a capital U with a number also embedded within.

Class 0 is slower than Class 2.

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However, three other sizes are as follows:

1.

SD, SDHC and SDXC cards

They are the regular sizes which are also known as Full-Size SD cards.

They have the same physical size but, SDHC and SDXC can hold more storage capacity.

However, 1 Terabyte-sized SD cards are already available now.

MiniSD and MiniSDHC

They are the miniaturization of the regular SD card.

Physically, they are about half size of the SD card.

They are common used on smartphones, tablets, camcorders, and other IoT devices.

The max storage capacity of MicroSD is 2GB, microSDHC can reach up to 32GB and microSDXC is 2TB.

After reading this post, you must know how to choose a suitable card for your personal use.