The TLBF-28G-4G-E from Talent Microwave Inc is a Band Pass Filter with Frequency 26 to 30 GHz, Bandwidth 4000 MHz, Center Frequency 28000 MHz, Insertion Loss 2 dB, Upper Rejection 30dB@35Ghz. Tags: Module with Connectors. More details for TLBF-28G-4G-E can be seen below.