The BWSBF-2/6R5-4 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 2 to 6.5 GHz, Band 1 2 to 3 GHz, Band 2 2.8 to 3.9 GHz, Band 3 3.6 to 5 GHz, Insertion Loss 6 to 6.5 dB. Tags: Die. More details for BWSBF-2/6R5-4 can be seen below.