The 2017-3338 from Cross Technologies is a Block Up/Down Converter with Input Upconverter Frequency 2.4 GHz, Input Downconverter Frequency 3.3 GHz, Output Upconverter Frequency 3.3 GHz, Output Downconverter Frequency 2.4 GHz, Gain 0 to 20 dB. Tags: Rack Mount. More details for 2017-3338 can be seen below.