The WS408NKU from Withwave is a RF Switch with Frequency 0.01 to 10 GHz, Insertion Loss 3.4 dB, Isolation 30 to 33 dB, Power 33 to 35 dBm, Power 1.99 to 3.16 W. Tags: Module with Connectors, USB Controlled. More details for WS408NKU can be seen below.