This product is either discontinued or we cannot get that from suppliers.
Ergotron 97-650 Pan Pivot Kit for SV LCD Cart, Capacity up to 14 lbs, Easily pans 180°, uses the cart’s existing pivot and base, Includes pan extension, hardware
Upgrade your StyleView Cart by increasing the display's side-to-side pan motion to a full 180°. Allows easy screen sharing and better-personalized views.