EXDISPLAY Synology Rack Station RS819 - NAS/Storage Server - 4 Bay - Ethernet LAN - Rack 1U RS819 is a compact and scalable 4-bay rackmount NAS in a 1U form factor. With snapshot technology support, RS819 brings business workgroups simple yet comprehensive solutions to data management, sharing, synchronization and backup. Compact chassis design capable of fitting in a 2-post rack Cost-efficient server deployment without unnecessary investment in rail kits and server facilities Snapshot replication provides schedulable and storage capacity-saving data protection with 256 shared folder backups and 4096 system-wide snapshots File or folder level data restoration makes data recovery fast and flexible Automatic file self-healing detects and recovers corrupted files without user intervention