Hi Gang I have 2 slightly used new signalink Usb and comes with K3 chip and line in/out cable 75 dollars for each one shipped. Also have a 5 month old Factory assembled K3 with sub receiver and kxv3a-F/ KAT3-F and microphone for sale 2 500 CW FILTERS. 73 Ed, Wp4o, Tampa florida Wp4o at tampabay.rr.com