The Canon 90D uses SDXC, SDHC, and SD cards. To get the best performance from your camera, use an SD card with UHS-II.
Memory cards that can be used with the 90D include any SD card with a memory size of up to 2TB. A note of importance is that SD cards that do not have UHS-II will have slower transfer speeds, which can reduce the camera's capabilities.
Just want a compatible SD card? Here's my recommendation for the best memory card:
Best value per GB for a UHS-II card.
If you will be shooting video, a 256GB card is a better choice.
Now that your camera is ready to go, you can expand your capabilities with a new lens. Take a look at the 8 Best Canon 90D lenses.
Best SD Cards
SanDisk, Lexar, and Sony are manufacturers that make high-quality Memory cards. The best SD cards I have owned have been the SanDisk Extreme Pro memory cards.
You do not need to purchase a card made by SanDisk for your Canon 90D. Make sure that the card has UHS-II. That will ensure you get the fastest read/write rates the camera is capable of.
I have not run into issues with Sony or Lexar Professional SD cards.
Any issues I have had with memory cards has been when I have used inexpensive brands. Not having a brand name increases the chance of data corruption or card errors.
If you are looking to spend less, don't buy a generic card. You will avoid problems by purchasing a name-brand SD card with a reduced storage capacity.
Recommended SD Cards
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.
- Lower priced card.
- Transfer speeds up to 95 MB/s.
- Class 10 & UHS-I.
- Magnet Proof, Shock Proof, Temperature Proof, Waterproof.
- 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 Rebel 90D SD Card Compatibility
SDXC, SDHC, and SD cards can be used by the Canon 90D. Use a UHS-II SD card to get the best overall performance from the camera.
Four different specs of Secure Digital (SD) memory cards have been made. New card specifications add tech that allows for greater storage capacity and increased read/write speeds.
- Secure Digital (SD) - 128MB to 2GB.
- Secure Digital High Capacity (SDHC) - 4GB to 32GB.
- Secure Digital eXtended Capacity (SDXC) - 64GB to 2TB.
- Secure Digital Ultra Capacity (SDUC) - 4TB to 128TB.
Here is an estimation of how many large JPEGs you can expect to fit on a card:
- 4GB - 1,160 images
- 8GB - 2,320 images
- 16GB - 4,640 images
- 32GB - 9,280 images
Speed, Class, & UHS Ratings
The speed rating of an SD card is determined by sequential write and read speeds. Card speed is important for video and continuous shooting.
Slows cards can cause a drop in the number of continuous images the Canon 90D can capture. This is due to the camera's buffer not being able to write data to the SD card fast enough.
When shooting video, a slow card can cause an unexpected end to the recording. The video file may also end up being corrupted. If you intend to shoot video, it is critical the SD card you use meets the requirements of the camera.
Read speed is nice to have for transferring files to a computer. If you have cards that are full, a card with a fast read speed will save you time.
Speed Class Rating
The Class rating of a memory card is based on the sustained write speed. SD cards that have a write speed of at least 10MB/s are labeled 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 name-brand card that you can buy today will be rated Class 10. To check the class rating of a memory card, try to find a number inside of a C on the label.
Ultra High Speed (UHS)
The Ultra High Speed (UHS) bus can be found in SDXC And SDHC cards. UHS allows cards to achieve faster transfer rates.
There are 3 different specs. They are UHS-I, UHS-II, and UHS-III.
Look at the label to figure out the rating of a card. If the SD card has UHS a roman numeral I, II, or III will be on the label.
- 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
Now that you what specs the camera needs you can see why the Sony M Series SDXC UHS-II is the best Canon 90D memory card. This will also help you find an SD card for your future cameras.
Here are more pages on cameras related to the 90D: