The RCM-3SP4T-18 from Mini Circuits is a Switch Matrix with Frequency DC to 18 GHz, Insertion Loss 0.15 to 0.8 dB, Power 43.01 dBm, Voltage 23 to 25 V (Input), 5 V (USB), Isolation 60 to 100 dB. Tags: USB Switch Matrix, Benchtop, Rack Mount. More details for RCM-3SP4T-18 can be seen below.