The Neo-Flex Extend LCD Arm from Ergotron offers a full 9.5" of height adjustment and can be used to position the middle of the monitor anywhere from 9" to almost 18.5" above the mounting point. At maximum extension from the mount it can also reach a full 23". This is a pole-mount arm that requires manual adjustment along the 12" upright. The Extend LCD Arm is also modular which means that where space is limited it is possible to remove one or both of the extensions to reduce the extension reach. However, this is accomplished with an accompanying loss of both articulation range and elevation. Since the complete arm folds back to under 5" there really is no need to remove the extensions. Weight capacity is from 7 to 20 lbs.