Synology DiskStation DS918+Satisfy your need for performance and capacityDS918+ supports up to two M.2 NVMe 2280 SSDs, allowing fast system cache creation without occupying internal drive bays. Scalable up to 9 drives with a Synology Expansion Unit DX517, DS918+ answers the need for flexible storage capacity.Btrfs: Next generation storage efficiencyBtrfs file system introduces the most advanced storage technologies to meet the management needs of modern large scale businesses:Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared foldersSnapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshotsFile or folder level data restoration makes data recovery fast and flexibleAutomatic file self-healing detects and recovers corrupted files without user interventionLearn more about the benefits of using BtrfsDigital asset protectionPowered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes. Learn moreSecurity AdvisorAnalyzes system settings, password strength, network preferences, and removes any possible malware.AppArmorA kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.AES 256-bit encryptionEncrypt shared folders and network data transmission to keep data from unauthorized access.2-step verificationPrevent others from logging in to your DSM by generating a one-time password (OTP) on your mobile device.Trust LevelCustomize the trust level in Package Center to avoid installing packages from untrusted sources, safeguarding your NAS from unknown or tampered package files.Synchronize files across your devicesCloud Station Suite provides real-time data synchronization across all your devices and other Synology NAS. "Intelliversioning" keeps the most important file versions to better utilize storage space.Cloud Station SharesyncCloud Station DriveCloud Station ServerDS Cloud4K Multimedia ServerAccess and stream your 4K media content anytime and anywhere. DS918+ supports 4K H.264/H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on the fly on other computers, smartphones, and media players that originally do not support Ultra HD formats. Learn morePowered by Synology DSMSurveillance StationComplete surveillance solution for recording, monitoring, and management.Collaboration SuiteSynology Office, Calendar and Chat guarantee a secure and high-performance private communication and user-friendly content organization.All-in-one serverSave additional investment by integrating various network services, web/mail services, management applications into your NAS.DSM UIAward-winning operating system with an intuitive user interface and powerful capabilities.Desktop BackupSimplified backup solution for your Mac, PC, and mobile devices.SecurityComprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.