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Best Canon PowerShot A540 SD Memory Cards

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Canon PowerShot A540 SD Memory Card Compatibility

´╗┐The Canon A540 requires SD memory cards. The largest capacity SD card that can be used in the A540 is 2GB. MultiMediaCards (MMC) can also be used.

SD memory cards labeled as SDHC, SDXC, or SDUC are not going to function correctly in the A540. These cards will be At least 4GB or bigger, so they are simple to avoid.

Transcend 2GB SD Memory Card

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Transcent 2GB Card
  • Best value for the money.
  • Available new.
  • You don’t really have a choice.
  • Built-in error-correcting code to detect and correct transfer errors.
  • Meets the Secure Digital Card interface standard.
Check prices on: Amazon or Adorama

SanDisk 2GB Class 2 SD Memory Card

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SanDisk 2GB Card
  • High-quality memory card.
  • Class 2 speed rating.
  • Write protection lock.
  • Shock rating of 2,000 G’s, equivalent to a 10-foot drop.
Check prices on: Amazon or Adorama

Best SD Cards

Transcend and SanDisk both make first-class memory cards. Avoid buying cards from bargain-priced house brands.

Memory card issues, for instance a complete loss of all your photos resulting from file corruption, is much more likely to occur with cheap cards. The reduction in construction quality is not worth the slight savings.

Buying a smaller capacity memory card is a intelligent way to save a tiny bit of money. They are often a bit less expensive and you won’t need to stress out about the SD card losing your photos.

Always bear in mind, SD card problems are rarely experienced. In my time, I have only had only two cards become corrupted. Age may have played a part, as the SD cards were bundled with used cameras.

Canon A540 SD Card Compatibility

4 different technical specs of Secure Digital (SD) memory cards exist. The Canon A540 uses SD memory cards. The benefit is that there is an increase in the max capacity and transfer speeds with the release of each new spec.

Secure Digital memory card readers are backward compatible. A card reader built into a digital camera that can use SDXC cards will also be able to use SDHC and SD memory cards.

The card reader in the Canon A540 is only compatible with the initial SD card technical spec. SDHC, SDXC, or SDUC memory card cards are not going to work.

  • Secure Digital (SD) - These memory cards have a maximum capacity of 2GB and are compatible with the A540.
  • Secure Digital High Capacity (SDHC) - The capacity of these memory cards range from 4GB to 32GB.
  • Secure Digital eXtended Capacity (SDXC) - The capacity of these memory cards range from 64GB to 2TiB.
  • Secure Digital Ultra Capacity (SDUC) - The capacity of these memory cards range from 4TiB to 128TiB.

Canon A540 Memory Card Full Error

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SD card contacts

Attempting to use a SD memory card that has a capacity of 4GB or larger in size in the A540 results in the digital camera to display an error.

Get a memory card with a capacity of 2GB or less to resolve the error.

If you have a SD memory card that is 2GB or smaller, and the card is not working, format the SD memory card while it is in the camera.

Speed, Class, & Capacity

SD Card Image Capacity

This is a quick estimation of how many large JPEGs you can expect to fit on an SD card.

  • 512MB - 240 images
  • 1GB - 480 images
  • 2GB - 960 images

Memory Card Speed

Speed ratings for SD memory cards are determined by the sequential read and write speeds. The speed of the SD memory card is important for when many photos need to be written to the SD card.

SD Card Speed Class Rating

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SD Card Speed Class

The Class speed rating of an SD memory card is dependant on the sustained write speed of the memory card. A Class speed rating of 2 means that the card can maintain a write speed of at least 2MB per second.

  • Class 2 - 2MB/s
  • Class 4 - 4MB/s
  • Class 6 - 6MB/s
  • Class 8 - 8MB/s
  • Class 10 - 10MB/s

The best rating a card can attain is Class 10. There are SD memory cards that are significantly faster than 10MB/s. Those SD cards use other solutions, such as UHS (Ultra Highspeed Bus), which use a different rating criteria.

Sustained write speeds of 2MB, 4MB, 6MB, or 8MB per second means the card has a speed class of 2, 4, 6, or 8. Cards that have write speeds of 10MB/s or faster are rated as Class 10.