The ZTDAT-4-13G90S from Mini Circuits is a Attenuator Matrix with Attenuation Range 0 to 90 dB, Frequency 10 MHz to 13 GHz, Insertion Loss 8.0 to 15.5 dB, Isolation 90 to 100 dB, Power 10 to 23 dBm. Tags: Rackmount. More details for ZTDAT-4-13G90S can be seen below.