The TLLF-DC-4G-L from Talent Microwave Inc is a Low Pass RF Filter with Frequency DC to 4000 MHz, Insertion Loss 2.0 dB, Rejection 30 dB, Upper Rejection >30dB@5000MHz, Power 2 W. Tags: Module with Connector. More details for TLLF-DC-4G-L can be seen below.