The BWSBF4-6/18-9C8 from Sainty-Tech Communications Limited is a Switched Filter Bank with Frequency 6 to 18 GHz, Band 1 6 to 10 GHz, Band 2 8 to 14 GHz, Band 3 12 to 18 GHz, Insertion Loss 9.5 dB. Tags: Die. More details for BWSBF4-6/18-9C8 can be seen below.