The LPF2400M from Lotus Communication Systems is a Low Pass RF Filter with Frequency DC to 2.4 GHz, Stopband Frequency 3.6 to 5 GHz, 3 dB Cutoff Frequency 2800 MHz, Insertion Loss 1.5 dB, Rejection 20 to 30 dB. Tags: Module with Connector. More details for LPF2400M can be seen below.