The TLBF-3G4-1G-X from Talent Microwave Inc is a Band Pass Filter with Frequency 2900 to 3900 MHz, Bandwidth 1000 MHz, Center Frequency 3400 MHz, Insertion Loss 1.5 dB, Upper Rejection 50dB @ 4.9 to 8 GHz. Tags: Module with Connectors. More details for TLBF-3G4-1G-X can be seen below.