The AC-4 has been sold. The T-4XC and interconnect cables have been sold. The following is listed on QTH.COM T-4XC #1246230 AC-4 #1246231 MS-4 #1246232 R-4C #1246433 interconnect cables #1246544 Doug --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus