Shareware Plus is reporting they have User Port Interfaces in stock for the Commodore 64 & 128.
These allow you to plug in the harness so your 586220 or 785260 can test all the ports on your Commodore 64 or 128.
These User Port Interfaces are priced at £14.95 plus postage, for more information you can contact Shareware Plus via email [email protected].