This is a used but like new original Sony power cord. Will work on the 500 and 300 models and many other Sony units. This cord was made by GE for Sony and is still soft with no cracks. It was kept in a climate controlled setting so it is not brittle. IT IS 10 FEET LONG
These are very hard to find in this condition. Most I find are damaged or brittle
If you need other parts for this machine let me know and maybe I can help. Thanks