ThinkServer 3.5 inch 7.2K RPM SAS drives deliver the scalability that data centers need to reliably meet their demanding growth of unstructured data.Features a range of high capacities-from 1TB to 3TB-in a 3.5-inch enterprise-class hard disk drive Reliable, 24x7 bulk data storage, even in the most rugged multi-drive SAS or SATA environments Reduces energy and cooling costs