The HGST Ultrastar 7K4000 is the world's first 7200 RPM hard drive with a 4 TB capacity and a 2.0 million hours MTBF specification. It comes with a full 5-year warranty. Originally offered with SATA 6 Gb/s, it is now also available with a SAS interface. The Ultrastar 7K4000 is the sixth generation of HGST's 5-platter design, which has proven itself in practice with major server and storage OEMs as well as internet giants. The Ultrastar 7K4000 is designed for the highest quality and undergoes rigorous design tests during development. Additionally, it must continuously pass strict reliability tests during production. The Ultrastar 7K4000 delivers performance by reducing downtime, eliminating service calls, and minimizing total cost of ownership.