Flexible storage platform for small businesses and home offices. Take your data management to the next level Versatile smart storage that helps you consolidate and store your growing digital data. Stunningly compact Powerful functionality in a tiny package, with room for 10GbE and dual NVMe drives. Consolidate and share Flexibly store and organize 50 TB of data, then share with anyone. Keep your data safe Hardware and software engineered to protect your data — trusted by millions. Storage that fits your needs Is your data scattered across external drives and public cloud accounts? With the DS923+, you can consolidate your data with over 50 TB across 4 bays.1 Need more space? Expand with the DX517 for over 120 TB of storage. The performance you need Reduce transfer times with the DS923+, designed to accelerate your workloads. Easily add faster networking and NVMe drives to further boost performance. Store, share, and protect Manage all your documents, photos, and other files, back up applications and devices, and protect your assets with professional video surveillance. Private cloud Access files from all your devices and protect them with smart versioning. Manage, share, and sync your data across locations. A private cloud for all your devices Build your own personal cloud with Synology’s private cloud solution. Simplify file access and consolidate your data management to benefit from easier file sharing and collaboration. Professional photo management Efficiently back up and organize photos and videos with management tools for amateurs and professionals. Automatically organize your content into albums and create secure share links for family, friends, or clients. A private cloud for all your devices Build your own personal cloud with Synology’s private cloud solution. Simplify file access and consolidate your data management to benefit from easier file sharing and collaboration. Professional photo management Efficiently back up and organize photos and videos with management tools for amateurs and professionals. Automatically organize your content into albums and create secure share links for family, friends, or clients. L Sync files and folders between sites Site-to-site file syncing allows collaborators to sync individual files or folders between Synology devices, whether at home, another office, or across the world. Combine convenient access with 100% data ownership. Share data with the power of the cloud Reduce your on-site storage footprint and benefit from data center network speeds with hybrid cloud technology. Set up Hybrid Share Folders to efficiently store cold data in the cloud, while keeping frequently accessed files cached locally on your DS923+ and accessible at LAN speeds. Multi-layered backup Back up files, folders, physical devices, VMs, and SaaS applications with free solutions, and protect your NAS with built-in technologies. Centralize your backup and recovery solution Consolidate and automate backup tasks for PCs, file servers, VMs, SaaS applications, and more with the Active Backup Suite. Manage device backups remotely through a centralized portal and quickly restore specific files or whole devices to keep your business up and running. Built-in remote backup solutions enable seamless 3-2-1 backup configurations. Smart surveillance Transform your Synology device into a full-featured video management system for a wide range of compatible IP cameras. Synology Surveillance Station Protecting your business has never been easier, with centralized management, support for over 8,300 IP camera models, and remote monitoring and playback. Synology’s video management system provides all the tools you need for live monitoring, investigation, management, and backup. Dual recording C2 Surveillance allows you to keep access to surveillance footage if your recording server is disabled by recording to your local server as well as C2 cloud. End-to-end encryption protects streams against unauthorized access while low latency recording lets you review the crucial last few seconds before the recording server was lost. Performance backed by Synology drives Leverage high sustained performance and reliability with enterprise-grade drives with built-in data protection designed for Synology systems. Get more with DiskStation Manager Take advantage of a host of native productivity, management, and security solutions available in the web-based Synology DSM operating system. Central Management System Conveniently manage your fleet of Synology NAS from a centralized console. Security Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions. Synology High Availability Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

Technical details
Sustainability compliance	Y
Sustainability certificates	CE, RoHS
Processor
Processor family	AMD Ryzen
Processor manufacturer	AMD
Processor model	R1600
Processor frequency	-2.6 GHz
Processor boost frequency	3.1 GHz
Processor cores	2
Memory
Internal memory	4 GB
Internal memory type	DDR4L
Maximum RAM supported	32 GB
Memory slots	2
ECC	Y
Ports & interfaces
Ethernet LAN (RJ-45) ports	2
USB port	Y
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2
eSATA ports quantity	1
PCI Express x2 (Gen 3.x) slots	1
Weight & dimensions
Width	199 mm
Depth	223 mm
Height	166 mm
Weight	2.34 kg
Power
Power supply location	External
Power supply unit (PSU) capacity	100 W
Number of power supply units	1
Redundant power supply (RPS) support	N
Power consumption (typical)	35.51 W
Power consumption (HDD standby)	11.52 W
AC input voltage	100 - 240 V
AC input frequency	50 / 60 Hz
Operational conditions
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	5 - 95%
Storage temperature (T-T)	-20 - 60 °C
Network
Ethernet LAN	Y
Ethernet LAN data rates	10,100,1000 Mbit/s
Copper ethernet cabling technology	10BASE-T, 100BASE-TX, 1000BASE-T
iSCSI support	Y
Wake-on-LAN ready	Y
Supported network protocols	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Link aggregation	Y
Storage
Storage drives installed	N
Number of storage drives supported	4
Installed storage drive type	N
Supported storage drive types	HDD & SSD
RAID support	Y
Supported storage drive interfaces	M.2, Serial ATA III
Storage drive sizes supported	2.5,3.5"
Number of M.2 (M & B) slots	2
RAID levels	0, 1, 5, 6, 10, JBOD
Online RAID migration	Y
Online RAID expansion	Y
Hot-swap drive bays	Y
Supported file systems	BTRFS, Fat, HFS+, NTFS, ext3, ext4
Certificates
Certification	FCC BSMI VCCI RCM UKCA EAC CCC KC
Software
Operating system installed	DiskStation Manager
Operating system version	7.1.1
Server operating systems supported	Windows Server 2016, Windows Server 2019
Packaging content
External power adapter	Y
Cables included	AC, LAN (RJ-45)
Power cables quantity	1
Design
Chassis type	Tower
Cooling type	Active
Product colour	Black
Number of fans	2 fan(s)
Fan diameter	9.2 cm
Drive bay locking	Y
LED indicators	Y
Built-in display	N
Cable lock slot	Y
Cable lock slot type	Kensington
Built-in speaker(s)	N
Performance
Type	NAS
Device class	Home & Home Office
Backup function	Y
Backup features	Cloud, iSCSI LUN
Multilingual support	Y
Noise level	22.9 dB
Card reader integrated	N
Management protocols	SNMP
Security algorithms	AES
Access Control List (ACL)	Y
Reset button	Y
On/off switch	Y
Built-in UPnP AV media server	Y
Built-in FTP server	Y
Browser supported	Google Chrome, Firefox, Microsoft Edge, Safari
Hot spare	Y