The BWSBF-8/12-4 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 8 to 12 GHz, Band 1 8 to 9.6 GHz, Band 2 8.8 to 10.4 GHz, Band 3 9.6 to 11.2 GHz, Insertion Loss 9 to 10 dB. Tags: Die. More details for BWSBF-8/12-4 can be seen below.