The 2117-7173 from Cross Technologies is a Block Up/Down Converter with Input Upconverter Frequency 2.025 to 2.11 GHz, Input Downconverter Frequency 7.17 to 7.255 GHz, Output Upconverter Frequency 7.17 to 7.255 GHz, Output Downconverter Frequency 2.025 to 2.11 GHz, Gain 20 dB. Tags: Rack Mount. More details for 2117-7173 can be seen below.