Best Canon PowerShot SD400 SD Memory Cards

The Canon SD400 uses SD memory cards. The largest capacity SD card that will work in the SD400 is 2GB. MultiMediaCards (MMC) can also be used.
SD memory cards labeled as SDUC, SDXC, or SDHC will not work in the SD400. These cards will be At least 4GB or larger, so they are easy to avoid.
Recommended SD Memory Cards
Transcend 2GB SD Memory 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.
SanDisk 2GB Class 2 SD Memory 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.
Best SD Cards
Good quality memory cards are produced by both Transcend and SanDisk. Avoid picking cards from bargain-priced third-party brand names.
Cheap cards are more inclined to have data corruption, meaning that you’ll lose all of your photos saved on the card. A small amount of reduction in cost is not worth the decline of quality.
Get a smaller capacity memory card should you want to cut down on costs. They may be a little more affordable and you will not have to be concerned about the SD card having data failure.
Do not forget, SD card problems are not common. Only a couple cards have become corrupted out of the dozens I have owned over time. The two memory cards were previously owned house cards that were included along with the purchase of pre-owned cameras.
Canon SD400 SD Card Compatibility
four different technical specs of Secure Digital (SD) memory cards are currently available. The Canon SD400 is limited to using SD memory cards. Every updated memory card spec advances the transfer rates and maximum storage capacity when compared to the earlier specification.
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 Canon SD400’s card reader will only work with the first SD card standard. SDUC, SDXC, or SDHC memory card cards will not be compatible.
- Secure Digital (SD) - These memory cards have a maximum capacity of 2GB and are compatible with the SD400.
- 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 SD400 Memory Card Full Error

Trying to use a SD memory card that has a capacity of 4GB or larger in the SD400 will result in the digital camera to show an error.
Get a memory card with a storage capacity of 2GB or less to rectify the problem.
If you attempting to use a SD memory card that is 2GB or smaller, and it is not working, format the SD memory card in the camera.
Speed, Class, & Capacity
SD Card Image Capacity
Here is a quick estimation of the amount of large JPEGs you will be able to save on an SD memory card.
- 512MB - 240 images
- 1GB - 480 images
- 2GB - 960 images
Memory Card Speed
Speed ratings for SD memory cards are established by the sequential read and write speeds. The speed of the SD card is important in the event that many pictures need to be written to the SD card.
SD Card Speed Class Rating

The Class speed rating of an SD memory card is related to the sustained write speed of the SD memory card. A Class speed rating of 2 means that the memory card can maintain a write speed of a minimum of 2MB per second.
- Class 2 - 2MB/s
- Class 4 - 4MB/s
- Class 6 - 6MB/s
- Class 8 - 8MB/s
- Class 10 - 10MB/s
The maximum rating a SD card can obtain is Class 10. There are memory cards that are a lot faster than 10MB/s. Those cards use other technology, such as UHS (Ultra Highspeed Bus), that have a different rating specifications.
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.