The TLLF-DC-25G-X4 from Talent Microwave Inc is a Low Pass RF Filter with Frequency DC to 25 GHz, Stopband Frequency 29 to 40 GHz, Insertion Loss 2 dB, Rejection 40 dB @29 to 40 GHz, Power 15 W. Tags: Module with Connector. More details for TLLF-DC-25G-X4 can be seen below.