The HFCN-4400 from Mini Circuits is a Space Qualified RF Filter with Frequency 5 to 10.1 GHz, Cut Off Frequency 4400 MHz, Stop Band Frequency 3500 to 3600 MHz, Power 7 W, Insertion Loss 1.5 to 2 dB. Tags: Surface Mount. More details for HFCN-4400 can be seen below.