The MLFI-44008 from Micro Lambda Wireless, Inc. is a Tunable Filter with Tunable Frequency 4 to 8 GHz, Bandwidth 40 MHz, Rejection 80 dB, Input Power 10 dBm(Limiting), Insertion Loss 4 dB. Tags: Module with Connectors, YIG Filter. More details for MLFI-44008 can be seen below.