The QSPST70A-18-26.5 from Qualink Microwave is a RF Switch with Frequency 18 to 26.5 GHz, Insertion Loss 1.2 dB, Isolation 80 dB, Power 26.99 dBm, Power 0.5 W. Tags: Module with Connectors, Solid State. More details for QSPST70A-18-26.5 can be seen below.