How to Run Apps Directly from a microSD Memory Card | A2 App Performance Class
"This video discusses the SD Association's latest App Performance Class A2 that delivers increased app-running performance. App Performance Class 2 (A2) raises performance levels for SD memory cards by increasing support for mobile devices.
Today, installing apps and saving app data to SD memory cards is easier than ever. With A2, Android and Windows smartphones and tablets can confidently run the most demanding apps directly from a microSDHC or microSDXC card. This frees up valuable built-in memory for other tasks. Choosing the best SD memory card to run applications on your mobile device is easy. Simply match the A1 or A2 symbol on your device packaging to the memory card and enjoy the benefits of this new innovation. All SD memory cards with App Performance Class A1 or A2 are backwards compatible with exsitng host devices.
A2 cards deliver minimum Random Read Input-Output (IOPS) of 4000 per second, write IOTS of 2000 and sustain sequential performance of 10/MBs. These cards also support low voltage signaling (LVS).
For more information about A2 from the SD Association visit: https://www.sdcard.org/developers/sd-... "
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