Toshiba's N300 3.5-inch internal hard disk offers unprecedented reliability for NAS and other high-performance storage systems. It is optimized to meet the reliability, endurance, performance, and scalability requirements of 24-hour x 7-day high-capacity storage for personal, home office, and small business use. The N300 is available in capacities of up to 6 TB. Use for: Up to 8-bay NAS, Desktop RAID and servers, Multimedia server storage. Features: Optimized for use in 1-8 bay NAS enclosures, 3.5" SATA hard drive, 7200 rpm / 128 MB buffer, Desktop RAID and servers, Multimedia server storage.