IBM p/n 1391401 Model M Keyboard with original IBM ps/2 cable. Case and keys are in excellent condition with no yellowing or dents/cracks. Cable connector is missing one locking tab (see picture) but still latches well and operates correctly. Was given to me years ago and has been in storage for 25+ years. Tested and no problems were found but no guarantee of function due to its age and limited ability to test.