The PDSBF4-3R27/4R07-5D6 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 3.27 to 4.07 GHz, Band 1 3.27 to 3.57 GHz, Band 2 3.52 to 3.82 GHz, Band 3 3.77 to 4.07 GHz, Insertion Loss 7.5 dB. Tags: Die. More details for PDSBF4-3R27/4R07-5D6 can be seen below.