The 400 Series provides up to 24 inches (610 mm) of vertical, sit-to-stand adjustability - enough to accommodate sitting and standing users at the same workstation! 400 Series Mounting Solutions also provide smooth adjustment while maintaining touch-screen stability. Other features are cable management that conceals and routes cables, internal steel construction and easy-to-clean plastic exterior.
Customer Reviews of Ergotron 400 Series Vertical Mount Arm - 23lb
Unique main vertical pivot. Also, swivels horizontally at bracket, has 2 more joints at head, and rotation (about 105 degrees from center either direction, allowing both vertical orientations, but not horizontal inversion). Supplied bracket screws inadequate. Also, into 2" stud requires precise alignment, suggest against accessory plate; use intermediate piece of wood. User configures ease of motion at joint. Most wall mounts have main horizontal pivot, offer vertical range, but with secondary joints. This model is ideal for switching sitting to standing. Mounts are expensive! But Very happy.