This Acti9 accessory is a plug in base for modular products. This accessory is compatible the Acti9 products like Acti9 iC60, Acti9 iID, Acti9 iSW and Acti9 iSW-NA. It is dedicated for 1 pole. The dimensions are (W) 19mm x (H) 177mm x (D) 70mm.