This product speeds the secure installation of 3rd party equipment, especially communicators, inside our medium and large metal end stations. Saving time and simplifying the installation. In addition the design of this product accommodates our EXP-W10 and EXP-WCC PCB. Where a wired expander may have been fitted alongside the control panel, a cleaner, faster installation can be achieved by putting the expander PCB inside the end station. Avoiding the need for additional cabling and drilling. Straight forward to fit it has flexible means of attachment by either using the mounting holes or self-adhesive strips, already included in the box