The BWLF-7G from Sainty-Tech Communications Limited is a Low Pass RF Filter with Frequency DC to 7 GHz, 3 dB Cutoff Frequency 7 GHz, Insertion Loss 1.4 dB @7.0GHz, Rejection 20 dB @10.15GHz, 40 dB @11.15GHz, Power 30 dBm. Tags: Die. More details for BWLF-7G can be seen below.