Synology Cable Management Arm Helping you to organize data and power cables, optimize rack cabinet space, and enable proper access to the rear of the system. A. Mount post width must be equal to or greater than 450mm B. Mount post depth must be equal to or greater than 125mm C. Mount post height must be equal to or greater than 41mm Applied models: RKS-02 Installation Guide: https://bit.ly/3A7hGzE