Dell XP99D 2TB 7.2k rpm 3.5" SAS 12Gbps Hard Drive offers high capacity 2TB storage with rotational speed of 7200 rpm and data transfer rate of 12Gb/s making it one of the most reliable drive with faster read/write performance. Servers and drives using SAS offer the best performance and most flexibility to build an enterprise-level storage solution today. Advantages of SAS interface include Faster Throughput, Better suited to 24/7 workloads, Increased Availability of data, Utmost Flexibility, Built-in redundancy, and High transfer speeds. This hard drive ships with Hot-swap caddie for easy installation in a Dell PowerEdge Server.