The 7HS-18G/40G-K11 from Reactel is a RF High Pass Filter with Frequency Up to 40 GHz, Insertion Loss < 1.25 dB @ Passband, Rejection 30 dB @ DC - 16 GHz, VSWR 2.5:1. Tags: Module with Connectors. More details for 7HS-18G/40G-K11 can be seen below.