The MC4A2300F200FCG from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 2200 to 2400 MHz, Bandwidth 200 MHz, Center Frequency 2300 MHz, Insertion Loss 1 dB, Upper Rejection 30 to 35 dB. Tags: Surface Mount, Monoblock Filter, Dielectric Filter. More details for MC4A2300F200FCG can be seen below.