These were node cache drives in some Dell Isilon servers I purchased. Drives have power on time of roughly 4 years 105 days with one showing 10% endurance use and the other three showing 14% from the smartcl export which will be included with each drive. Servers were from a higher education institution surplus sale I bought, and were in excellent condition including being on the original shipping pallets so I'm guessing they sat powered on but barely used. Drives will be individually bubble wrapped, shipped within 2 business days, and insured at purchase amount.