The TS5810 models are high performance business class network storage devices featuring premium business class components housed in a durable metal chassis and shipped with hard drives included and optional 5-year warranty. The devices come equipped with industrial grade internal power supply for higher quality & ease of use. TeraStation 5810 was designed to support high performance and larger storage capacity scenarios in a desktop form fact. Key Features making this system an easy choice for businesses are embedded private and 3rd party Cloud backup, enhanced security options, advanced Active Directory integration and 24/7 North American based support. Customers can purchase spare hard drives from Buffalo that have gone through a zero-write pre-test process which individually tests each sector of the drive. Not only does this address higher quality for the drive but it also makes the process easier for businesses so they don't have to source the drives themselves.