The RS2423+ is versatile and cost-effective 2U 12- bay storage servers for central data storage and sharing, endpoint and server backup, surveillance management, and other business applications. With over 3,500/1,700 MB/s sequential read/write performance, up to 216 TB of raw storage, and the option to boost I/O speeds through SSD caching, the RS2423+ provide flexible storage. Synology RS2423+ is backed by Synology's 3-year limited warranty. 5 year warranty is available as an optional bundle with EW202, 2-year Extended Warranty service add-on. Synology Live Chat available - https://www.synology.com/en-global.