Includes mount hardware and 1.5" thread connector for attaching to E or EA 1.5" threaded columns. Mounting interface is VESA from 100x100mm through 200x200mm. Optional AD400 adapter extends mounting pattern through 400x400mm. Combine with Crimson E-series fixed extensions or EA-series adjustable extensions and CA ceiling adapters to complete the solution. Perfect for digital signage, dentist offices or medical centers.