For many users, memory cards are a very important part of mobile life. They provide extra storage when it's most crucial, allowing users to carry around thousands of songs, hundreds of TV shows, or dozens of movies to watch in their downtime. Depending on the model of phone in which they reside, they could also mean the difference between having enough space for Grand Theft Auto instead of Angry Birds.

If you're in the market for newer, faster, or just larger microSD (or even standard SD) card, then today's Amazon Gold Box deal is one you won't want to pass up. Several different Sony cards – and external hard drives – have taken a price slash in order to better fit your wallet.

Better hurry, though – one these are gone, the deal is over.

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