The 1CSX327-10 from Werbel Microwave is a Directional Coupler with Frequency 300 MHz to 2.7 GHz, Coupling 10 dB, Directivity 20 dB, Average Power 5 to 50 W, Insertion Loss 1 dB. Tags: Module with Connectors. More details for 1CSX327-10 can be seen below.