We all love our expandable storage, and microSD cards keep getting quite affordable.
However, note that not all microSD cards have similar performance, and some of them may not be recommended for your Android smartphone and tablet. That’s why the SD Association just announced a new micro SD certification method to help buyers select proper cards for their Android devices.
SanDisk has also unveiled the largest microSD card to receive the A1-certification for Android devices.
A1, stands for App Performance Class 1. It's a classification meant to ensure that apps will run properly when installed on a microSD card instead of a device’s main storage. “The A1 spec allows the new card to manage random read input-output access per second (IOPS) of 1,500 and write IOPS of 500, so it can quickly open apps and process accompanying tasks, such as audio, graphics, saved profiles and in-app permissions.
SanDisk’s new 256GB UHS-I card will be available worldwide for $199.99(N60,000)The card is to deliver “premium transfer speeds of up to 95MB/s,” according to SanDisk, which is pretty much on par with the company’s previous 256GB microSD card. But now SanDisk’s 256GB microSD card has A1 certification markings, as seen in the image above. SanDisk says the new Ultra microSD card with A1 “is designed to provide consumers a faster, more powerful app experience using cards.”
In 2016, SanDisk announced the world’s fastest 256GB microSD cards, including the Extreme (transfer speeds of up to 100MB/s, and write speeds of up to 90MB/s) and Ultra (premium transfer speeds of up to 95MB/s) models. If you happen to own either one, you won’t have to ditch them in favor of a card that has A1 written on it since they’ll offer you the exact same performance.
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