Zenith Data Systems ZF-171-42 Computer w/ Power Supply and Case 

powers on but keyboard  is not working, good cosmetic condition 

video here: https://youtu.be/eiXqNnZH9UM

No further tests have been conducted.

Computer items are vintage. Minimal testing has been done. They are not offered as perfect, as they are up to 35 years old. Early microcomputers were known to have faults and require technical knowledge to repair or operate properly. These items are sold to collectors and technical experts in AS-IS condition. Please do not buy this item if you do not accept these condition details. You are free to ask questions.