When you need superior performance in a small form factor for mission-critical applications, trust the Ultrastar® C15K600 in your high performance computing (HPC) environment. Spinning at 15K RPM, this drive really performs; it delivers more than 38% faster sequential and 2.5X faster random write performance. We've also included a broad range of security and encryption features to protect your data. To maximize performance and valuable floor space, trust the HGST Ultrastar® C15K600.