This is a vintage Microtek/Tandon TM-703 30MB 5.25" MFM hard disk drive. The drive spins up and does not appear to make any noises like a head crash has occured. No futher testing has been done. Drive is sold in AS-IS condition with NO RETURNS. You are taking your own risk when purchasing. It is a 40-something year old drive after all. With that said, it may work perffectly time for a while or it may not work at all.