With all these different cards, markings, and host devices, it can be easy to get lost in the sauce and buy a card that is not compatible with your device. Read below to avoid this situation!
Pitfall #1: You didn't check the device specifications
Always check the specifications of your device before buying an SD card for it. This will save you lots of time and headaches. You will be able to plan for buying the correct SD card using the info from this guide once you know the requirements of your device. See the example below for a practical lesson.
Pitfall #2: Your SD card is not compatible with your device
If you have a device that requires a speed class 10 card and you give it a class 6 card, the device will not be able to use the card, it will be incompatible. However, if your device requires at least a class 6 card, you may use the class 10 card as most devices are backwards compatible. Generally, you should use a card with the same class and specifications that the host device manual has specified.
Pitfall #3: Your SD card is too large
Many devices don't support more than 64GB. Again check the requirements of your device, specifically the memory limitations.
Example: how to avoid purchasing the wrong SD card
This example was taken from the SD guide by Tom's Tech Time.
You have a typical drone, say the DJI Phantom 4 pro, for which you would like to buy the right SD card. You read the SD card requirements and find the drone films in 4k at 100 megabits /sec. Knowing this, what kind of SD card would you need?
- 8 Bits = 1 Byte
- 100 MBPS / 8 = 12.5 MB/s
Thus you would need a card with a minimum of 30MB/s. This equates to UHS class 3 or Video Speed class V30 rating. Solved!
Page last edited March 08, 2024
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