Today's Amazon Gold Box daily deal is all about Lexar memory, and in not-so-modest sizes and speeds. Nope, these are not your bottom of the barrel memory cards and flash drives on offer. Those most relevant to your phone needs, the microSD cards, boast UHS-I/U3 speeds, meaning they meet the second-most rigorous speed specification in the industry. The deals are good too, matching the lowest price Amazon has ever offered for them.

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