CTN Series loads are available in 250 watt and 500 watt models and provide excellent return loss across all bands from DC – 3 GHz making them ideal for many base station and in-building wireless system applications. Both models feature N-Male connectors and designed for efficient heat transfer to customer supplied external heat-sink. 250w model available from STOCK. Additional Specs: http://www.e-meca.com/pdf-rf-termination/rf-termination-CTN-250.htm http://www.e-meca.com/pdf-rf-termination/rf-termination-CTN-500.htm