The NCS4-232+ from Mini Circuits is a Balun with Frequency 1.6 to 2.3 GHz, Amplitude Balance ± 0.06 to 0.90 dB, Phase Balance 4.63 to 10.06 Degree, Insertion Loss 0.41 dB, Power 3 W. Tags: Ceramic, Unbalanced to Balanced. More details for NCS4-232+ can be seen below.