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The purchase of an external SD card may seem like a simple and complex problem, but it is very easy to make a series of errors that make you buy a corrupted or inappropriate external memory card, its speed is slow or at least at a much higher price than you deserve, so you know. Contains errors to avoid when buying an external SD card.
Purchase an external memory card that is not compatible with the device
External memory cards are compatible with all slots, but do not work in all slots. Some formats, speeds, and capacities determine whether the card is compatible with the device or not.
Formats
There are 4 different card formats:
SD: It has a maximum capacity of 2 GB and works in any external memory location.
SDHC: It has a capacity of 2 to 32 GB and only works on devices that support SDHC and SDXC.
SDXC: Its capacity does not exceed 32 GB and can go up to 2 TB, which is only suitable for devices that support this card.
microSDUC: It supports cards up to 128 TB and requires a compatible device.
Therefore, before buying a type, make sure your phone already supports it and, if so, make sure it is compatible with the device. Never look at other items such as efficiency, capacity, speed, etc.
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Capacity
All SDXC slots do not automatically support all card sizes in this format. For example, we find that the Samsung Galaxy S9 supports cards up to 400GB, but does not support those with a capacity of 512GB.
If you plan to use an external memory card with a computer, you must make sure that the device supports formatting and capacity. SDXC cards use exFAT which works well with Windows for more than ten years.
Compatibility in terms of speed
The speed of the card can be negatively affected by the speed of the device itself and by its compatibility, the SDHC and SDXC formats can support a high-speed bus interface to transfer data at speeds up to 104 Gbps . These cards can reach 25 Mbps if they work in older locations.
Choose a memory card that is not suitable for the task
Usually, when you buy an external SD card, you need a high speed and high efficiency to help you get the job done. This does not mean that you choose the highest capacity or the highest speed, as this may not be compatible with the task for which you want to buy the card, always the UHS-II U3 cards. suitable for many tasks.
If you use an external card to store applications on your smartphone, you will need one with an app performance evaluation not only a flash card, but if you use an external memory card to record 4K videos on your phone, make sure you choose a priority speed and size. Ability to categorize the application.
Experts usually recommend an external class U3 memory card for 4K video recording. HD video is better for classes 6 or 10.If the speed of writing the card is too slow, the videos will be blurry.
For photography, some users prefer smaller cards rather than a large capacity card in order to avoid losing any images if the card is eroded.
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