The QBF-2400-2500-50 from Qualwave is a Band Pass Filter with Frequency 2.4 to 2.5 GHz, Bandwidth 100 MHz, Center Frequency 2450 MHz, Insertion Loss 1 dB, Upper Rejection 50 [email protected] to 5 GHz. Tags: Module with Connectors. More details for QBF-2400-2500-50 can be seen below.