Key Features Powerful & scalable 4-bay NAS for growing businesses Encrypted sequential throughput at over 225 MB/s reading & 221 MB/s writing Quad-core Intel J3455 processor with AES-NI hardware encryption engine 4GB DDR3L-1866 memory, expandable up to 8GB Dedicated M.2 NVMe SSD slots for system cache support Dual 1 Gb E LAN with failover & Link Aggregation support Scalable up to 9 drives with Synology DX5172 Advanced Btrfs file system offering 65, 000 system-wide snapshots and 1, 024 snapshots per shared folder Dual-channel H.265/H.264 4K video transcoding on the fly Synology Disk Station DS918+ is a 4-bay NAS designed for small & medium-sized businesses and IT enthusiasts. Powered by a new Intel Celeron quad-core processor, DS918+ provides outstanding performance & data encryption acceleration along with real-time transcoding of 4K Ultra HD source contents. Synology DS918+ is backed by Synology’s 3-year limited warranty.