You are purchasing this beautiful IBM 3509 external drive.you will be hard pressed to find a nicer external drive, this was removed from shelf and perhaps never used. It is operational and green light comes on when connected to power, you have 15 days to test and utilize with your equipment and you will find it is like new. If fails contact me before 15 days and I will refund after I have tested on my equipment!!!!! I am a disabled veteran business and I appreciate your patronage, check my sales you will find out from my buyers, I will provide what I sale and go extra mile!!!! Buyer pays 18 for shipping in USA, Overseas okay through shipping! Thanks