The 2117-7172 from Cross Technologies is a Block Up/Down Converter with Input Upconverter Frequency 1.95 to 2.05 GHz, Input Downconverter Frequency 7.15 to 7.25 GHz, Output Upconverter Frequency 7.15 to 7.25 GHz, Output Downconverter Frequency 1.55 to 1.65 GHz, Gain 20 dB. Tags: Rack Mount. More details for 2117-7172 can be seen below.