SCS PTC-IIe DSP Multimode PACTOR Controller with Pactor III firmware update. With serial port (RS232) to USB conversion cable. Price:$550.00 This unit works as a PTC USB Pactor modem with USB interface for computer control at a fraction of the price of a new Pactor USB modem. For reference, and an overview of models and prices please see: http://www.docksideradio.com/Pricing & Ordering.htm The latest further upgrades, and downloads of operating manuals are available from SCS. Please note the following web site. https://www.scs-ptc.com/en/Downloads.html This site has available specific updates for the SCS PTC-IIe to firmware version 4.1r, enabling them to perform like the latest version of Pactor III. This site also offers Manual 4.0 for the PTS-IIe. A great resource for SCS Pactor modems is Farallon Electronics. Their web site is: http://www.farallon.us/webstore/index1.html?c45.html&1 This offer does not include power supply or power cable, or any other cables. Shipping in the continental US is free and included in the price. Payment by PayPal only please. Will ship within two days of receipt verification of payment from Pay Pal. Will ship only to the address listed on the PayPal account used to pay for purchase. Please contact me through QRZ PM. Thanks for your interest.