Time for another addition to the growing collection of devices that claim to stop vampire power (AKA power used while electronics are in standby mode): the HiSaver.  Astra Corporation’s product, which debuted at last week’s Consumer Electronics show, uses a motion sensor placed on top of your computer to control a custom power strip. If you’re away from the PC for a certain amount of time, the HiSaver automatically shuts off the strip.

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