ANSWERS: 1
  • <h4 class="dechead">On One Hand: Using An SD Flash Card Conserves Power.

    An SD flash card is a kind of low power memory used for data storage in many portable electronic products. Since an SD flash card does not require movement of mechanical parts to read and write to it, it is more battery efficient than videotapes or some optical media.

    On the Other: An SD Flash Card Does Not Power Electronics.

    An SD flash card is simply a storage medium, similar conceptually to a hard drive. It does not actually power electronics, so it does not actually increase battery life. Only a power source of some kind can actually increase the battery life of electronics.

    Bottom Line

    An SD flash card is a relatively energy efficient way to store data in portable electronics. It is, however, only a storage media and only acts as a way to extend the battery life of electronics that would otherwise use a less efficient storage media.

    Source:

    Gateway Support: Frequently Asked Questions list for What is an SD Card?

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