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 p Compatibility b Lenovo ThinkServer System s b br ul li RD540 li li RD640 li ul p