The latest advancements to hit solid-state drives are earning raves as a potential slayer of transaction latency, but the innovation also comes with a green thumb.

"A solid state drive has no moving parts. So it's using less power than a hard drive," says Joseph Unsworth, a research director for Gartner, who says hard drives spin hot - often at 15,000 RPMs. "Hard drives need to be cooled."

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