M Ceiling Extension kit 3m Pro – OM55N-D/OM46N-D. This is an extension kit that works well with the M Ceiling Mount Pro OM55N-D M Ceiling Mount Pro OM46N-D. Multibrackets OM55N and OM46N Display Mounts are designed exclusively for Samsung OMN-D Series.The M Ceiling Extension kit 3m Pro creates a possibility to mount the display in a ceiling that has even greater height.This sleek, powerful extension solution is the ideal solution to showcase eye-catching, digital signage content that can be seen from both inside and outside a store window with a high ceiling height. Combined this extension kit with the M Ceiling Mount Pro OM55N-D and OM46N-D and utilize a multitude of installer friendly features, including concealed cable management for a professional appearance. This versatile solution can be adapted to suit a wide range of retail and commercial applications