This has become a hard to find Spectral interconnect due to the fact that Spectral replaced it two years ago with the ULIII which is very, very expensive. Yes the ULIII is somewhat better than the ULII but the consensus is not that much especially considering price. Hence many Spectral existing and new owners are staying with the ULII making it in demand.
If you're still using 330 ULIIs, the 350 ULIIs are in a different league. The locking RCA connectors are an especially nice feature.
Price when new was $2,100 and my very reasonable offer includes FedEx ground shipping signature required CONUS only with no paypal fee. I have been an Audiogon member for 19 years with perfect feedback. Buy with confidence.