The RCF-4700.000-600000-2012-W-001 from Raltron is a Band Pass Filter with Frequency 4.4 to 5 GHz, Insertion Loss 1.6 to 2.0 dB, Rejection 40 dB / 15 to 30 dB, Upper Rejection 15 to 30 dB, Lower Rejection 40 dB. Tags: Surface Mount, Ceramic Filter. More details for RCF-4700.000-600000-2012-W-001 can be seen below.