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Arm is being used with a laptop. Arm is stable and works much better than previous non-Ergotron arm. This arm is much smaller than the Ergotron arm I use with a keyboard for a desktop computer. The advantage is that the arm takes less space without sacrificing stability. I am pleased with the price-performance ratio of the product.
Although the distance to my wall for mounting is a bit too far for the arm, it's working out perfectly as I'd hoped. I can stand and type or I can sit at any number of different heights, and the arm adjusts quickly and stays in place.