The BWSBF3-1R9/6R8-9C8 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 1.9 to 6.8 GHz, Band 1 1.9 to 3.4 GHz, Band 2 2.6 to 4.7 GHz, Band 3 3.9 to 6.8 GHz, Insertion Loss 7.5 dB. Tags: Die. More details for BWSBF3-1R9/6R8-9C8 can be seen below.