Hardly used. No drives. See my other listing for drives. Affordable Data Management Solution For Your Home DS420j is a 4-bay desktop NAS designed for home users' data backup and file sharing. It supports various networking protocols, multiple RAID configurations and diverse add-on packages, effortlessly enabling cross-platform file synchronization and sharing on a private cloud. DS420j is backed by Synology’s 2-year limited warranty.2 Highlights • 4-bay home NAS with over 60 TB raw capacity support, suitable for data backup and file sharing • 64-bit 4-core 1.4 GHz processor and 1 GB DDR4 memory • Over 112 MB/s encrypted sequential reading and writing throughput1 • Easy-to-deploy surveillance solution that supports up to 16 IP cameras • Energy-saving design with only 7.88 W consumed in hibernation mode