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How to Choose 32GB SD Camera Memory Cards

A 32GB SD camera card is made to give you additional external storage for photos, videos, and other digital files. There are several aspects of the memory card to consider, such as physical size and speed for saving and retrieving files. The following information will aid you in choosing which memory card is right for your needs.

What are the speed classes for SD camera cards?

There are several memory card speed measurements that refer to different digital reading and writing speeds. It depends on which class you get. The class information is often printed on the front or back of the 32GB SD card itself but may be somewhere else on the packaging.

  • Class: This measurement is expressed as a number enclosed in a large "C." The numbers available are 2, 4, 6, 8, and 10. This expresses the MB/s speed of the card. For example, a Class 2 memory card can work at speeds of 2MB/s.
  • Ultra High Speed (UHS): This class is displayed as a large "U" with either the number 1 or 3 inside the letter. A U1 can work at speeds of 10MB/s and a U3 can work at speeds of 30MB/s.
  • Video Speed Class: This class is specifically used for video recording speeds and is expressed as a large "V" with a number next to it. The available classes are 6, 10, 30, 60, and 90. Each number represents the speed in MB/s. This means a V60 can work at 60MB/s.
What are the physical sizes of a 32GB SD card?

32GB SD memory cards come in several different sizes (see the manufacturer site for details), and each card operates on the same speed classes. You have to ensure that the card you get works with your camera. You can fit a smaller card into a larger slot through the use of an adapter. The three available sizes are:

  • Standard SD: The largest size, this memory card measures 32 millimeters by 24 millimeters.
  • MiniSD: This is the medium card, and it measures 21.5 millimeters by 20 millimeters.
  • MicroSD: MicroSD is the smallest and measures 15 millimeters by 11 millimeters.
What special protections can you get with SD cards?

A 32GB SD camera card is made to work in nominal temperatures and should be kept dry. Some manufacturers make memory cards that may withstand shock, higher temperatures, and some water before shorting out. Your card may be able to withstand higher temperatures. Be sure to check these claims if you will be working in extreme environments such as recording video in Antarctica or doing a photo shoot in the Sahara.

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