Small office / Home Office Network Attached Storage - Optimized to organize, store, share, and back up your important files. | Hassle-Free Installation - Hard drives included, and no computer needed for setup. Simply connect the NAS to your router for instant shared network storage for all your devices at the same time. Product is compatible with Windows and macOS. | Subscription-Free Personal Cloud - Store and back up videos, music, and photos and access them from anywhere without paying any monthly storage charges. | Secure Your Precious Data - Storage designed to keep your data safe, the NAS features a closed system to reduce vulnerabilities from 3rd party apps and SSL encryption for secure file transfers. | Back Up Multiple Computers & Devices- PC backup software included, and you can set up automated backups of data on your computers and mobile devices. | Securely Share Files With Family & Friends - Create individual access of folders to ensure your data remains private while securely share storage space or files with others. | 4 TB Total Capacity - 2 Drive Bays ships with RAID 1 (Automatic Backup) = 2 TB usable capacity. Set to RAID 0 to use the full 4 TB. | Direct Copy - Back up your devices via USB. Copy photos/videos/files without a computer. | Made in Japan - Quality Devices. | 24/7 US-Based Support - With 3-year warranty, including hard drives.