SYNOLOGY SYNOLOGY DS1522+ Datasheet

DiskStation

DS1522+

Flexible Data Management

Platform for Homes and

SOHO

The Synology DS1522+ is a versatile 5-bay

NAS solution that is easy to scale and expand

as your needs change, with optional support

for up to 15 drives, fast networking, and

NVMe SSD caching. Powered by Synology

DiskStation Manager (DSM), it oers a

exible all-in-one solution for data sharing,

synchronization, backup, and surveillance.

Highlights

Dependable Performance

•

Up to 736/796 MB/s sequential read/write throughput

makes le operations quick and ecient

Versatile Network Storage

•

Leverage built-in le and photo management, data

protection, virtualization, and surveillance solutions

Fast and Stable Connectivity

•

Four 1GbE ports for simple integration into existing

environments with optional 10GbE connectivity2 to

tackle more specialized, bandwidth-heavy applications

Easy Capacity Expansion

•

Add up to 10 extra drive bays with 2 DX517 expansion

units for a maximum of 15 storage drives

Extendable Product Support

•

Backed by Synology's 3-year limited hardware warranty,

extendable to 5 years in select markets

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DATASHEET | DiskStation DS1522+

Versatile Storage for Any PurposeVersatile Storage for Any Purpose

The DS1522+ comes out of the box with intuitive and comprehensive le

management, media organization, and backup options, making it ideal

for IT enthusiasts, creative professionals, and business owners looking

for a powerful and compact storage system.

• Up to 736 MB/s sequential read and 796 MB/s sequential write

performance1 enables fast le sharing, syncing, streaming, and backup

for multiple users

• Supports 5 x SATA HDD/SSD 2.5" and 3.5" drives,6 expandable to 15

drives with two Synology DX517 expansion units

• Up to 32 GB DDR4 ECC memory for protection against potential

crashes and inadvertent changes in data through automatic correction

of data errors

• Accommodate multiple streams or transfer tasks with four Gigabit

RJ-45 ports, which can be bonded using Link Aggregation to provide

automatic network failover and load balancing

• Maximize return on investment by upgrading your storage platform as

more demanding needs arise with two built-in M.2 NVMe SSD cache

slots7 and an optional 10GbE RJ-45 Network Upgrade Module

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Next-Generation File System

Btrfs is a modern le system designed to safeguard
data integrity through metadata mirroring, le self­healing, and fast snapshot replication.

Built for Data Protection and IntegrityBuilt for Data Protection and Integrity

Safeguard your critical data with the powerful storage management

features of Synology DSM, built on the advanced Btrfs le system.

• Advanced snapshot technology provides schedulable and

near-instantaneous data protection for shared folders and LUNs

• File and folder-level data restoration enables recovery of specic les

or folders

• Flexible storage quota system helps admins manage available space

by specifying storage limits for shared folders

• File self-healing detects and recovers corrupted les using mirrored

metadata and RAID congurations

• Inline compression minimizes storage consumption and extends the

life of drives by compressing data before it is written to the storage

pool

DATASHEET | DiskStation DS1522+

Synology Backup Solutions

DSM backup solutions are designed to be low­maintenance, with different RPO/RTO targets,
storage efciency, and backup destinations
available depending on your requirements.

Complete Data and Device Backup SolutionsComplete Data and Device Backup Solutions

Synology DSM comes standard with a complete package of backup

solutions available at no extra cost.

• Active Backup Suite consolidates backup tasks and oers rapid

restoration of Windows and Linux endpoints, VMs, Synology NAS, and

SaaS applications

• Snapshot Replication creates point-in-time copies of shared

folders and LUNs to protect them from accidental modications or

ransomware incidents

• Hyper Backup backs up your NAS data to multiple destinations

securely and eciently with integrity checks and powerful

deduplication, compression, and versioning options

• C2 Storage for Hyper Backup oers a dedicated secure public cloud

destination for Synology NAS backup data

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Powerful Collaboration and Sharing ToolsPowerful Collaboration and Sharing Tools

Synology Productivity Suite

A powerful and secure private cloud solution
that lets teams collaborate, sync les, and
communicate with others anytime, anywhere.

Synology's productivity suite provides a private cloud solution for on-site

and remote workers to concurrently edit documents, share les, manage

emails, send instant messages, and more.

• Synology Drive is a cloud le management solution that supports

le sharing, remote data access, cross-device and cross-site

synchronization, on-demand le restoration, and backup.

• The Synology Oce extension lets users collaborate on documents,

spreadsheets, and presentation slides in real time, supported by

convenient options such as le versioning for easy restoration and

password protection

• Synology Photos serves as a media organization hub for enthusiasts

and professionals looking to eciently manage and share their photos

and videos through intuitive browsing options and secure sharing

methods

• Synology Hybrid Share combines reliable on-premises storage and

ecient syncing of shared folders in the cloud to enable seamless

cross-site synchronization and local le access at LAN speed

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DATASHEET | DiskStation DS1522+

Private Video SurveillancePrivate Video Surveillance

Synology Surveillance Station transforms the DS1522+ into a powerful

Network Video Recorder solution with support for up to 40 IP cameras.

• 8,300+ supported camera models

• ONVIF support for a broader selection of cameras

• Private, subscription-free storage of recordings

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Always On Guard

Protect your premises with Synology's reliable
and intuitive video management system (VMS)
solution. Surveillance Station combines intelligent
monitoring and robust management features for
exible deployment scenarios.

Flexible Virtualization

Whether providing VM storage through iSCSI and
NFS or running VMs directly on the DS1522+ using
Virtual Machine Manager, Synology DSM provides
comprehensive tools to protect your VMs.

• Access through web browsers, desktop clients, or mobile apps

• Event-based rules to trigger specic actions

• Email, SMS, and push notication options

Virtualization and Certied Storage Virtualization and Certied Storage

Your DS1522+ can serve as virtual machine storage, VM backup server,

and a lightweight container and VM host. It is fully certied as storage

for VMware® vSphere™, Microsoft® Hyper-V®, Citrix® XenServer™, and

OpenStack environments.

• Synology Storage Console for VMware or Windows platforms

lets you manage VM storage components directly from your

hypervisor.VMware VAAI integration and Windows ODX help ooad

storage operations and speed up data transfer

• Host light containers and VMs for testing, sandboxing, and emergency

recovery purposes with Docker and Synology Virtual Machine

Manager, a native hypervisor that supports Windows, Linux, and

Virtual DSM

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DATASHEET | DiskStation DS1522+

Hardware OverviewHardware Overview

Rear

Front

1

Status Indicator

5

Power Button and Indicator

9

Network Upgrade Slot

13

Fans

2

Drive Status Indicators

6

Drive Trays

10

USB 3.2 Gen 1 Port

14

Kensington Security Slot

3

Drive Tray Locks

7

Expansion Ports

11 1GbE RJ-45 Ports 12

Technical Specications Technical Specications

Hardware

CPU AMD Ryzen™ R1600 dual-core (4-thread) 2.6 GHz, max. boost clock up to 3.1 GHz

Hardware encryption engine AES-NI

Memory 8 GB DDR4 ECC SODIMM (expandable up to 32 GB)

Compatible drive types

Hot swappable drives Yes

External ports

Form factor Desktop

Size (HxWxD) 166 x 230 x 223 mm

Weight 2.7 kg

LAN ports 4 x 1GbE RJ-45

Wake on LAN/WAN Yes

Network expansion Supports E10G22-T1-Mini 10GbE RJ-45 Network Upgrade Module

Scheduled power on/o Yes

System fans 2 x (92 x 92 x 25 mm)

AC input power voltage 100 V to 240 V AC

Power frequency 50/60 Hz, single phase

Operating environment

Storage environment

Maximum operating altitude 5,000 m (16,400 ft)

• 5 x 3.5" or 2.5" SATA HDD/SSD (drives not included)

• 2 x M.2 2280 NVMe SSD (drives not included)

• Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list

• 2 x USB 3.2 Gen 1 ports

• 2 x Expansion ports (eSATA)

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• Temperature: 0°C to 40°C (32°F to 104°F)

• Relative humidity: 5% to 95% RH

• Temperature: -20°C to 60°C (-5°F to 140°F)

• Relative humidity: 5% to 95% RH

4

USB 3.2 Gen 1 Port

8

Power Port

Reset Button

6

DATASHEET | DiskStation DS1522+

General DSM Specications

English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar,
Português do Brasil, Português Europeu, Türkçe, Český,

Networking protocols SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, and VPN (PPTP, OpenVPN™, L2TP)

File systems

Supported RAID types Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10

Storage management

SSD cache

File sharing capabilities

Privileges Windows® Access Control List (ACL) and application privileges

Directory services

Virtualization VMware vSphere®, Microsoft Hyper-V®, Citrix®, OpenStack, and Kubernetes

Security

Supported browsers

• Internal: Btrfs, ext4

• External: Btrfs, ext4, ext3, FAT32, NTFS, HFS+, exFAT

• Max. single volume size: 108 TB

• Max. number of system snapshots: 65,536

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• Max. number of internal volumes: 64

• Read/write cache support

• M.2 NVMe and 2.5" SATA SSD support

• Maximum local user accounts: 2,048

• Maximum local groups: 256

• Maximum shared folders: 512

• Maximum concurrent SMB/NFS/AFP/FTP connections: 2,000

Connects with Windows® AD/LDAP servers enabling domain users to login via SMB/NFS/AFP/FTP/File Station using their
existing credentials

Firewall, shared folder encryption, SMB encryption, FTP over SSL/TLS, SFTP, rsync over SSH, login auto block, Let's Encrypt
support, and HTTPS (customizable cipher suite)

Google Chrome®, Firefox®, Microsoft Edge®, Safari® 13 and later, and Safari (iOS 13.0 and later) on iPad, Chrome (Android™

11.0 and later) on tablets

Interface languages

Packages and Applications

File Server & Synchronization

Synchronizes les across Windows®, macOS®, Linux®, Android™, and iOS. The built-in cross-platform portal allows access to

Drive

File Station

Hybrid Share8

FTP Server

Presto File Server

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Cloud Sync

Universal Search

Migration Assistant

SAN Storage & Virtualization

SAN Manager

Virtual Machine Manager

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Data Protection & Backup Solutions

Hyper Backup

Backup tools

data anytime and anywhere

• Max. number of hosted files: 5,000,000

• Max. number of concurrent connections for PC clients: 350

Provides virtual drives, remote folders, Windows® ACL editor, compression/extraction of archived les, bandwidth control for
specic users/groups, creation of sharing links, and transfer logs

Eciently synchronizes les across sites by keeping shared data on Synology C2 Storage and streaming les to Synology NAS
worldwide on request. Frequently requested les are cached at each site for low-latency access

Supports bandwidth control for TCP connections, custom FTP passive port ranges, anonymous FTP, FTP over TLS/SSL and
SFTP protocols, network booting with TFTP and PXE support, and transfer logs

Enables high-speed data transfer over WAN between Synology NAS and desktop platforms through the exclusive SITA
technology

Oers one or two-way synchronization with public cloud storage providers including Alibaba Cloud OSS, Backblaze B2, Baidu
Cloud, Box, Dropbox, Google Cloud Storage, Google Drive, hubiC, MegaDisk, Microsoft OneDrive, OpenStack Swift-compatible
storage, Tencent COS, WebDAV servers and Yandex Disk

Search through les, metadata, and more on your NAS. Integration with Windows Search and macOS Spotlight makes it easy
to nd les

Migrates data, system setting, and applications seamlessly from one Synology NAS to another to ensure maximum service
availability

• Max. number of iSCSI targets: 128

• Max. number of LUNs: 256

• LUN clone/snapshot support

Supports running Windows®, Linux®, and Virtual DSM-based virtual machines on Synology NAS

Supports local backup, network backup, and data backup to other devices, Synology NAS, and public clouds including C2

Storage

• DSM conguration backup, macOS® Time Machine® support, Synology Drive Client desktop application

• Shared folder sync supports a maximum of 32 tasks

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DATASHEET | DiskStation DS1522+

Snapshot Replication

Synology High Availability Reduces service downtime by combining two identical NAS into a high-availability cluster

Active Backup for Business

Active Backup for Google
Workspace

Active Backup for Microsoft 365 Supports backup and restoration of Microsoft 365 OneDrive for Business, Outlook, Contacts, and Calendar

• Maximum number of snapshots for shared folders: 1,024

• Maximum number of replications: 32

An all-in-one backup solution designed for heterogeneous business IT environments. It enables IT admins to remotely
manage and protect PCs, servers, Synology systems, and VMs from one centralized console

Supports backup and restoration of Google Workspace My Drive, Team Drive, Gmail, Contacts, and Calendar

Productivity & Collaboration

Collaborate with instant messaging service Synology Chat, online documents editor Synology Oce, and scheduling assistant

Collaboration tools

Note Station

Synology MailPlus Server

Synology MailPlus

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Synology Calendar

• Max. number of concurrent users for Chat: 100

• Max. number of users for Office: 1,200

• Calendar supports CalDAV and access via mobile devices

A note taking platform that supports rich text, note organization and versioning, encryption, sharing, media embedding, and
attachments

A secure, reliable, and private mail solution featuring high-availability, load balancing, security, and ltering options

An intuitive webmail interface for Synology MailPlus Server with congurable mail labels, lters, and user interface

Multimedia

Synology Photos

Other packages

An ecient photo management solution for professional and amateur photographers. Automated tools allow users to group,
lter, organize, and share content while keeping their photos safe and secure

Video Station, Audio Station, and iTunes® Server

Surveillance

Surveillance Station

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Maximum IP cameras: 40, for a total of 1200 FPS at 720p (H.264)

Management & Administration

Synology Directory Server Provides a exible and cost-eective domain controller solution

Central Management System Provides a single interface to manage and monitor multiple Synology NAS

VPN Server

Active Insight

Storage Analyzer

Antivirus Essential Provides full system scans, scheduled scans, white list customization, and auto-update of virus denitions

Web Station Enables hosting for up to 30 websites with support for PHP/MariaDB® and 3rd-party applications

Other packages DNS Server, RADIUS Server, and Log Center

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• Maximum connections: 40

• Supported VPN protocols: PPTP, OpenVPN™, L2DTP/IPSec

Monitor health statistics, login activity, and backup statuses for your Synology servers worldwide, and receive notications
and advice from our centralized cloud-hosted management platform

Displays volume and quota usage, total size of les, volume usage and trends based on past usage, size of shared folders,
large les, most recently modied les, and least recently accessed les

Others

iOS/Android™ applications

Other packages Additional 3rd-party packages are available in the Package Center

Synology Drive, Synology MailPlus, Synology Secure SignIn, Synology Chat, Synology LiveCam, Synology Active Insight, DS
cam, DS le, DS nder, and DS note

DATASHEET | DiskStation DS1522+

Environment and Packaging

Environmental safety RoHS compliant

• 1 x DS1522+ main unit

• 1 x Quick Installation Guide

Package contents

Optional accessories

15

Warranty 3 years

Note: Specications are subject to change without notice. Please refer to the model’s specications page for the most up to date information.

1. Performance gures obtained through internal testing by Synology. Actual performance may vary depending on the testing environment, usage, and
conguration. See performance charts for more information.

2. One 10GbE Rj-45 port can be added to the DS1522+ with Synology E10G22-T1-Mini Network Upgrade Module.

3. DS1522+ supports up to 15 drives with two Synology DX517 expansion units, sold separately.

4. The warranty period starts from the date of purchase as stated on your purchase receipt. Learn more about our limited product warranty policy.

5. Up to 5 years of warranty are available as an additional bundle with Extended Warranty Plus or Extended Warranty, both 2-year extended warranty service add­ons available in select regions. Check availability forExtended Warranty EW201 orExtended Warranty Plus.

6. Check our compatibility list for supported drives.

7. SSD cache can be enabled by using 2.5" SATA SSD drives in standard drive bays or without occupying drive bays by installing Synology SNV3400 M.2 NVMe SSD
drives into the built-in M.2 slots. Drives are sold separately.

8. C2 Storage for Hyper Backup and Hybrid Share requires purchase of an annual or monthly subscription. A free trial is available for each newly registered device.

9. Surveillance Station includes two free licenses. Connecting more cameras and devices requires additional licenses. Learn more.

10. Certain advanced features require Virtual Machine Manager Pro. One Virtual DSM license is included. Additional Virtual DSM instances require the purchase of

Virtual DSM Licenses.

11. System snapshots include snapshots taken by SAN Manager, Snapshot Replication, and Virtual Machine Manager.

12. Presto File Server license can be purchased separately through the application.

13. Five MailPlus email accounts are included. Additional email accounts can be added with the purchase of Synology MailPlus License Packs. Learn more

14. Synology Active Insight is currently in Beta with all features available for evaluation. Certain functionalities may require a subscription upon ocial release.

15. Please refer to our compatibility list for the latest optional accessories list.

• 1 x Accessory pack

• 1 x AC power adapter

• 1 x AC power cord

• 2 x RJ-45 LAN cables

• DDR4 ECC SOIMM: D4ES02-8G / D4ES01-16G

• Synology Network Upgrade Module: E10G22-T1-Mini

• M.2 2280 NVMe SSD: SNV3400 series

• 2.5" SATA SSD: SAT5200 series

• 3.5" SATA HDD: HAT5300 series

• Expansion Unit: DX517

• MailPlus License Pack

• Surveillance Device License Pack

• Virtual DSM License Pack

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• Extended Warranty: EW201, Extended Warranty Plus

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SYNOLOGY INC.

© 2022, Synology Inc. All rights reserved. Synology, the Synology logo are trademarks or registered trademarks of Synology Inc. Other product and company names
mentioned herein may be trademarks of their respective companies. Synology may make changes to specication and product descriptions at anytime, without
notice.

DS1522+-2022-ENU-REV001

DATASHEET | DiskStation DS1522+