Best Canon PowerShot SX40 HS SD Memory Card

By Nathaniel Stephan
Last Updated: February 17, 2020
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Best Canon PowerShot Digital Camera Memory Card

SD, SDHC, and SDXC memory cards are compatible with the Canon PowerShot SX40 HS. A memory card with fast enough write speeds is essential for burst shooting and video.

You can ruin the performance of your camera by using the wrong SD card.

If you're in a hurry, here's the best SD memory card you can buy for the Canon PowerShot SX40 HS:

SanDisk Extreme Pro 128GB UHS-I SD Card

SanDisk Extreme Pro 128GB SD Card

  • Best value for the money.
  • Capacities from 32 GB to 2TB.
  • Transfer speeds up to 170 MB/s.
  • Class 10 & UHS-I
  • Temperature Proof, Water Proof, Shock Proof, and X-ray Proof.

Best SD Cards

SD memory cards have come way down in price the time since the launch of the Canon PowerShot SX40 HS.

Seeing as how cheap costs are, it doesn't be wise to spend money on anything besides a high-quality card.

The best memory cards I have used have been the SanDisk Extreme Pro, Lexar Professional, and PNY Elite Performance models. I have not suffered from data errors or a card break with those SD memory cards.

Each and every trouble I have had has been due to low-cost unbranded SD memory cards. Hoping to save around a buck is not worthwhile if your PowerShot SX40 HS is not going to function properly.

To cut costs, find a lower capacity memory card from a high-quality supplier. That way, you will know your shots are safe on the card.

Recommended SD Cards

SanDisk Extreme Pro 128GB UHS-I SD Card

SanDisk Extreme Pro 128GB SD Card

  • Best value for the money.
  • Capacities from 32 GB to 2TB.
  • Transfer speeds up to 170 MB/s.
  • Class 10 & UHS-I
  • Temperature Proof, Water Proof, Shock Proof, and X-ray Proof.
PNY Elite Performance SDXC 128GB Memory Card

PNY Elite Performance 128GB SDXC Card

  • Lower priced card.
  • Transfer speeds up to 95 MB/s.
  • Class 10 & UHS-I.
  • Magnet Proof, Shock Proof, Temperature Proof, Waterproof.
Lexar Professional 1066X 128GB SD UHS-I Memory Card

Lexar Professional 1066x 128GB SDXC UHS-I Card

  • Lexar Professional Silver Card.
  • Transfer speeds up to 160 MB/s.
  • Class 10 & UHS-I.
  • Includes Lexar Recovery Tool Software.
  • Designed for durability in harsh conditions.

Canon PowerShot SX40 HS SD Card Compatibility

The memory cards that can be used with with the Canon PowerShot SX40 HS are SD, SDHC, and SDXC. Check to make sure you have the latest firmware installed on your camera for the best performance.

The newest memory cards, SDUC (Secure Digital Ultra Capacity), are not going to be compatible with the PowerShot SX40 HS.

A camera that can use the same capacity memory cards is the Canon Rebel SL2. Here are the best lenses for the Canon Rebel SL2.

You need to be aware of the 4 kinds of Secure Digital (SD) memory cards that can be found. You can recognize them by looking at their capacity.

  • SD (Secure Digital) - 128MB to 2GB.
  • SDHC (Secure Digital High Capacity) - 4GB to 32GB.
  • SDXC (Secure Digital eXtended Capacity) - 64GB to 2TB.
  • SDUC (Secure Digital Ultra Capacity) - 4TB to 128TB.

Image Capacity

Panasonic SD Memory Card Contacts

Listed here is a quick estimation of just how many max-quality JPEGs pictures you can be expecting to store on a SD memory card:

  • 16GB - 4,640 images
  • 32GB - 9,280 images
  • 64GB - 18,560
  • 128GB - 37,120

Speed, Class, & UHS Ratings

Card Speed

Speed ratings of an SD memory card is determined by the continuous read and write speeds of the card. The transfer speed of a memory card is critical for clearing the camera buffer for continuous shooting and recording video.

Slows cards can cause a decrease in the number of continuous photos the Canon PowerShot SX40 HS can capture. This is because the camera's buffer is not able to write data to the memory card quickly enough.

With video, a slow card can cause recording to end. The video file might also be corrupted. If you intend to shoot video, it is critical the card you use meets the minimum requirements of the PowerShot SX40 HS.

Read speed is important for transferring files to a computer or laptop. If you have cards that are full, a SD card with a fast read speed will reduce the transfer time.

Speed Class Rating

Example of where to find SD Card Speed Class
The 10 inside of the C means the card is Class 10.

The sustained write speed of a memory card is the factor that determines the Class rating. SD cards that have a minimum write speed of 10MB/s are rated as Class 10.

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

Every brand-name SD card that you can get will be rated Class 10. You can locate the class rating of a memory card by finding a number inside of a C on the front.

Ultra High Speed (UHS)

Example of an SD memory card with a UHS-I rating.
The UHS rating of a card can be determined by a Roman numeral I, II, or III on the label of the card.

The Ultra High Speed bus (UHS) is found in SDHC, SDXC, and SDUC memory cards. The UHS bus memory cards to achieve increased write speeds.

There are 3 different specs. They are called UHS-I, UHS-II, and UHS-III.

You can figure out the rating of a SD memory card by looking at the front of the card. If there is a Roman numeral I, II, or III on the front of the SD memory card, that is going to be the Rating of the SD memory card.

  • UHS-I - Maximum transfer rate of 104 MB/s
  • UHS-II - Maximum transfer rate of 312 MB/s
  • UHS-III - Maximum transfer rate of 624 MB/s

Related Cameras

Taking the specs into consideration, the 128GB SanDisk Extreme Pro is the best memory card for the Canon PowerShot SX40 HS. The SD card also has great compatibility with other cameras.

The following are more pages on cameras similar to the PowerShot SX40 HS:

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