The QBF-24000-27800-60 from Qualwave is a Band Pass Filter with Frequency 24 to 27.8 GHz, Bandwidth 3800 MHz, Center Frequency 25900 MHz, Insertion Loss 2 dB, Upper Rejection 60 dB @30 to 40 GHz. Tags: Module with Connectors. More details for QBF-24000-27800-60 can be seen below.