The TLLF-DC-2G1-X from Talent Microwave Inc is a Low Pass RF Filter with Frequency DC to 2.1 GHz, Stopband Frequency 2.4 GHz, Insertion Loss 1.2 dB, Rejection 40 dB @2.4 GHz, Power 15 W. Tags: Module with Connector. More details for TLLF-DC-2G1-X can be seen below.