The original SD memory card, which is the largest in the SD lineup. See SD card. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

The Premier Extreme SD 8.0 Express memory card will debut with a single 512GB storage option, but we're likely to see higher-capacity offerings spring up as the technology and market matures.

The best SD ... capacity of your handheld is one of the most significant and impactful upgrades you can make, it's also one of the most affordable and easiest to accomplish via an SD card.

The best SD ... capacity of your handheld is one of the most significant and impactful upgrades you can make, it's also one of the most affordable and easiest to accomplish via an SD card.