The TC-20180-10S-Cryo from Talent Microwave Inc is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 10 dB, Coupling Variation ±1 dB, Directivity 12 dB, Power 2 W. Tags: Module with Connectors, Cryogenic. More details for TC-20180-10S-Cryo can be seen below.