Best Canon PowerShot SX20 IS SD Memory Card

By Nathaniel Stephan
Last Updated: March 11, 2020
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Best Canon PowerShot Digital Camera Memory Card

The Canon PowerShot SX20 IS requires SD memory cards. 32GB is the biggest capacity SD card that can be used in the PowerShot SX20 IS. MultiMediaCards (MMC) and MMCplus cards can also be used.

SD memory cards that meet the SDXC or SDUC specifications won't function correctly in the PowerShot SX20 IS. These cards will be 64GB or larger, so they are simple to avoid.

If you're in a hurry, here are the best SD card you can get for the Canon PowerShot SX20 IS:

SanDisk Extreme Pro UHS-I SDHC Memory Card

SanDisk Extreme Pro 32GB SDHC

  • Best value for the money.
  • Read speeds of up to 95MB/s; write speeds of up to 90MB/s.
  • Shock-proof, temperature-proof, waterproof, and x-ray proof.
  • UHS speed Class 3 (U3) and UHS video speed Class 30 (V30).

64GB or larger cards are not compatible with the camera.

Recommended PowerShot SX20 IS SD Cards

Below are SD memory cards that will work correctly with the PowerShot SX20 IS. With all of the cards below, you will not have to be worried about memory card problems or slow capabilities.

SanDisk Extreme Pro UHS-I SDHC Memory Card

SanDisk Extreme Pro 32GB SDHC UHS-I

  • Best value for the money.
  • Read speeds of up to 95MB/s; write speeds of up to 90MB/s.
  • Shock-proof, temperature-proof, waterproof, and x-ray proof.
  • UHS speed Class 3 (U3) and UHS video speed Class 30 (V30).
SanDisk Ultra UHS-I SDHC Memory Card

SanDisk Ultra 32GB SDHC UHS-I

  • Quick transfer read speeds up to 90MB/s.
  • Write speeds are not capable of recording 4k video.
  • Class 10 rating for Full HD video (1080p).
  • Waterproof, temperature proof, X-ray Proof, magnet-Proof, and shockproof.
Lexar 633x 23GB UHS-I SDHC Memory Card

Lexar Professional 633X 32GB SDHC UHS-I

  • High-speed, Class 10 performance.
  • UHS-I technology for a read transfer speed up to 633x (95MB/s).
  • High-speed file transfer from card to computer to dramatically accelerate workflow.

Best SD Cards

SanDisk and Lexar both produce premium quality memory cards. Avoid buying cards from bargain-priced no-name brands.

Memory card troubles, for instance, a loss of all your images due to file corruption, is more likely to happen with bargain-priced cards. A minuscule amount of savings on cost is not worth the decrease in quality.

In the case that you need to save money, buy a memory card with a smaller capacity. They usually are a little cheaper and you won't have to be worried about the SD card failing.

Be aware that, SD card failures are very uncommon. Just a couple of cards have become corrupted out of the considerable number I have owned over many years. Age may have played a part, as the SD cards were bundled with pre-owned cameras.

Canon PowerShot SX20 IS SD Card Compatibility

The Canon PowerShot SX20 IS can only use SD memory cards. There are currently 4 different specs of Secure Digital (SD) cards. The benefit is that there is a boost in the max storage capacity and transfer rates with the introduction of every new technical 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.

A camera that can use larger capacity memory cards is the Canon Rebel T5i. Here are the best lenses for the Canon Rebel T5i.

The Canon PowerShot SX20 IS's card reader is only compatible with the original two SD card standards. SDUC or SDXC cards are not going to work.

  • Secure Digital (SD) - These memory cards have a maximum capacity of 2GB and are compatible with the PowerShot SX20 IS.
  • Secure Digital High Capacity (SDHC) - The capacity of these memory cards range from 4GB to 32GB and are also compatible with the PowerShot SX20 IS.
  • 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 PowerShot SX20 IS Memory Card Full Error

SD card contacts for Canon digital point and shoot camera

Attempting to use an SD card that has a storage capacity of 64GB or larger in size in the PowerShot SX20 IS will cause the digital camera to show an error.

Use a memory card with a storage capacity of 32GB or smaller to avoid the error.

If you attempting to use an SD memory card that is 32GB or smaller, and the card is not working, try to format the memory card while it is in the camera.

Speed, Class, & Capacity

SD Card Image Capacity

Here is an estimate of the number of large JPEGs you can expect to fit on an SD card.

  • 4GB - 1920 images
  • 8GB - 3840 images
  • 16GB - 7680 images
  • 32GB - 15360 images

Memory Card Speed

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

SD Card Speed Class Rating

Example of where to find SD Card Speed Class
This is a Class 10 SD memory card as shown by the '10' inside of the 'C'

The Class speed rating of an SD memory card is determined by the sustained write speed of the SD card. A Class speed rating of 2 means that the SD memory card can maintain a write speed of more than 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 an SD memory card can attain is Class 10. There are memory cards that are substantially faster than 10MB/s. Those cards use other technology, such as UHS (Ultra Highspeed Bus), which have a separate rating specification.

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.

MultiMediaCard Compatibility

The MultiMediaCard technical standard was unveiled by SanDisk and Siemens AG in 1997. MMC cards look like a slimmer SD card.

Only the 1st 2 versions of MMC cards are going to work correctly in the Canon PowerShot SX20 IS. Compatible memory cards will be labeled as MMCplus or MMC. Later versions won't work in the Canon PowerShot SX20 IS

I wouldn't advise purchasing any MMC memory cards. Businesses are not presently manufacturing MMC cards that will function with the PowerShot SX20 IS. That's why they are tough to purchase used and high-priced.

Conclusion

The best SD memory card for the Canon PowerShot SX20 IS is the SanDisk Extreme Pro 32GB SD Memory Card. However, the Lexar Professional 32GB SD Memory Card offers the best value.

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