This is a brand new 3D printed Keyboard connector; RJ4 4P4C Telephone handset cable assembly will slide onto the keyboard case.
The following information is located in the Kaypro II Manual:
| Pin No. | Fucntion | Color Code | |
| Pin 1 | J3 | Keyboard Serial Data Out (to Keyboard) TTL Levels | Black |
| Pin 2 | J3 | Ground | Red |
| Pin 3 | J3 | Keyboard Serial Data In (from Keyboard) TTL Levels | Yellow |
| Pin 4 | J3 | +5 VDC | Green |
If your Vintage Kaypro Computer has a crumbling and broken keyboard cable connector than this brand new 3D printed solution will slide right in. Requires you to attach to original connector so some assembly is required.
I have been restoring, building, and selling on ebay for over 25 years. Please do not look at my listings from your phone. Please read the entire description and the shipping and handling times. I am not AMAZON, I will not ship before the Shipping and handling times I posted on this listing.
Thank you and contact me with any questions you have prior to purchasing.