As we use our computers more every day, I’m seeing more people looking into ergonomic devices, either because they’re already suffering from repetitive stress injury or they want to take preventive measures.

There are several mice that hold the hand in a vertical, “handshake” position. Here’s a review of one of the oddest looking ones yet, a bulky device that cradles the hand and keeps your wrist and fingers completely immobile.

The vertical mice are so unusual looking that it’s hard not to be skeptical, but I’ve tried several and been surprised that they immediately feel comfortable and natural. People with RSI can’t imagine computing without them.

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