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Synology DiskStation DS115j
Simplified yet powerful private cloud solution for home users

Synology DiskStation DS115j dlna

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Synology DiskStation DS115j is a compact 1-bay NAS server specifically designed for home and personal users to effortlessly share storage across devices. Featuring a simple, sleek design and low power consumption, DS115j fits elegantly into your living room and study. Running on Synology DiskStation Manager, DS115j takes full advantage of the rich features Synology has to offer.

  • Smart, Cool, and Quiet
  • Floating-Point Unit Boosting CPU Efficiency
  • Only 3.85 Watts in HDD Hibernation
  • Over 102.89 MB/s Reading, 61.59 MB/s Writing
  • Runs on Synology DiskStation Manager (DSM)

Sheer Simplicity

Rich with network storage features, Synology DS115j serves not only as your private cloud to access anywhere, but also as a backup device, DLNA music and video library, online photo album, local copy of your public cloud, and so much more to fulfill your daily data management needs. DS115j also cleverly manages your download tasks 24/7. In addition to its versatility, DS115j is also budget-friendly and energy-efficient.

With the built-in floating-point unit, DS115j transcodes audio tracks into MP3 format on demand to reduce streaming bandwidth and speeds up thumbnail generation to yield a refreshing photo viewing experience. DS115j reads over 102.89 MB/sec and writes over 61.59 MB/sec in a Windows environment.

Tailor-made for the home environment, DS115j silently operates on very low wattage, making it a pleasant addition to your home as a perfect desktop companion.

Budget-friendly Surveillance & Backup Server

DS115j serves as a compact NAS server to leverage Synology Surveillance Station. A full-featured NVR that comes with two free IP camera licenses and supports up to five cameras, DS115j is an ideal surveillance solution for home and SOHO use.

DS115j can also function as a centralized backup target to consolidate fragmented and unstructured data across a network. Windows PC users can back up their data to DS115j with Windows Backup and a variety of third-party software, while Mac OS X users can enjoy native Apple Time Machine integration. Synology users can adopt DS115j as a network backup destination for another Synology NAS with the built-in Backup & Replication package.

Full Multimedia Features

With DS115j you have many tools to easily manage your multimedia. Photo Station’s intuitive design allows you to effortlessly organize photos into customized categories, smart albums, and blog posts; as well as link them to social networking websites like Facebook, Twitter, Flickr, and Weibo with just a few clicks. Audio Station comes with a built-in lyrics plugin, Internet radio, and support for DLNA, AirPlay, and Bluetooth speakers for quality playback. With Video Station, you can watch movies and TV shows online and record your favorite programs with a DVB-T, DVB-S or DTMB tuner.

Windows + Mac + Linux Cross Platform File Sharing

Synology DS115j offers comprehensive network protocol support, assuring seamless file sharing across Windows, Mac, and Linux platforms. Internet file access is simplified by the encrypted FTP server and the web-based file explorer, File Station. HTTPS, firewall, and IP auto-block support ensure secure file sharing over the Internet. Cloud Station allows users to sync files among multiple devices and platforms, including Windows PC, Mac, Linux, iOS and Android tablets or phones, effortlessly keeping everything up-to-date. Cloud Sync keeps your Dropbox, Google Drive and Baidu storage in sync with your personal DiskStation cloud files at home.

Synology QuickConnect and Mobile Apps

For users whose network environment lacks a public IP address or the ability to configure port-forwarding, QuickConnect provides a relay service for you to access your DS115j from anywhere around the globe, even when it’s hidden in a local area network. With a customizable QuickConnect ID, you can log in to your DS115j via DSM browser interface, Synology desktop utilities, and mobile apps.

Synology provides mobile apps that let you enjoy the full variety of your multimedia library even when you’re on the go, allowing you to access the photo albums, music, and video collection stored at home on your DS115j. Available on iOS, Android, and Windows Phone platforms, DS photo+, DS audio, and DS video mobilize your Photo Station, Audio Station, and Video Station, potentially placing terabytes of content at your fingertips. On top of that, DS download makes it possible for you to manage and monitor your download tasks remotely while DS file allows you to manage the files stored on your DS115j.

Easy Setup and Management

Combined with a quick start wizard, users can simultaneously tour the DSM operating system while setting it up for initial use. For users unfamiliar with complicated router configurations or those who simply want to save time, the Synology EZ-Internet Wizard simplifies the process of setting up access to your DS115j via Internet. EZ-Internet Wizard walks you through all network settings including firewall, port-forwarding, PPPoE setup, and DDNS registration. The multi-tasking web interface of DSM allows users to run multiple applications simultaneously on one tab browser and switch between them seamlessly.

Runs on Synology DiskStation Manager (DSM)

Synology DiskStation Manager (DSM) is a web-based OS that provides private cloud services. It is designed to make your everyday life easier. The built-in Package Center allows you to download and install packages designed specifically for your unique needs with just a few clicks. The simple interface allows you to manage and configure storage capacity with minimal effort. It provides you with complete control of your personal cloud and lets you access it anywhere. Synology DSM will help you maximize productivity and get more out of your digital assets with minimal fuss.

Energy-efficient with Cool and Quiet Design

Synology DS115j is designed with energy efficiency in mind. Not only does it provide a 60 X 60 mm fan and smart airflow to keep the system running cool 24/7, its noise dampening design makes it really quiet compared to PC counterparts. The hard drive hibernation feature can further reduce power consumption and operation cost.

All Synology products are produced with RoHS compliant parts and packed with recyclable packing materials. Synology acknowledges its responsibility as a global citizen to continually work in reducing the environmental impact of every product produced.


Personal, private cloud solution

Manage your media and data, and backup your devices to DS115j with a simplified, all-in-one solution. Designed for cool and efficient operation with extremely low power consumption. The noise dampening design fits perfectly anywhere.

Easy file access with QuickConnect

Access files on your Synology NAS over the Internet without the hassle of setting up port forwarding rules, DDNS, or other complicated network settings. QuickConnect allows you to connect via a simple customizable address (e.g., so that you can instantly access media and work files on any Windows/Mac/Linux computer, laptop, or mobile device without additional charge.

Easy file access with QuickConnect

Stream content to your TV

Turn your Synology NAS into a home media hub and stream your digital contents to computers, mobile devices, Samsung TV, Roku players, Apple TV, Google Chromecast, and DLNA devices.

Samsung TV
Samsung TV
Apple TV
Apple TV
Android TV
Android TV

Seamless integration with your mobile devices

Synology mobile applications are designed to allow quick and secure access to your data wherever you are.

  • DS Audio
  • DS Photo
  • DS Video

Powered by Synology DSM

Surveillance Station

Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

Desktop Backup

Desktop Backup

Simplified backup solution for your Mac, PC, and mobile devices.

File Server/Management

File Server/Management

Powerful built-in file management and sharing services.



Award-winning operating system with an intuitive user interface and powerful capabilities.



Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.



Complete multimedia solution for management, streaming, and playback.

Product Views:

Technical Specifications:

Front View
Rear View
  1. Status indicator
  2. LAN indicator
  3. Drive status indicator
  4. Power button and indicator
  5. Fan
  6. Reset button
  7. Kensington Security Slot
  8. USB 2.0 port
  9. 1GbE RJ-45 port
  10. Power port
Technical Specifications:
Hardware Specifications
CPU Model Marvell Armada 370 88F6707
CPU Architecture 32-bit
CPU Frequency 800 MHz
Hardware Encryption Engine
System Memory 256 MB DDR3
Drive Bay(s) 1
Compatible Drive Type*
  • 3.5" SATA HDD
  • 2.5" SATA HDD (with optional 2.5" Disk Holder)
  • 2.5" SATA SSD (with optional 2.5" Disk Holder)
Maximum Internal Raw Capacity 10 TB (10 TB HDD x 1) (Capacity may vary by RAID types)
Maximum Single Volume Size 16 TB
  • "Compatible drive type" indicates the drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
  • The maximum single volume size is not directly related to the maximum raw capacity.
External Ports
RJ-45 1GbE LAN Port 1
USB 3.0 Port 2
File System
Internal Drives EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+*
  • exFAT*
  • HFS+ is read only, max 2TB volume size.
  • exFAT Access is purchased separately in Package Center.
Size (Height x Width x Depth) 166 mm x 71 mm x 224 mm
Weight 0.7 kg
System Fan 60 mm x 60 mm x 1 pcs
Fan Speed Mode
  • Cool Mode
  • Quiet Mode
  • Low-power Mode
Power Recovery
Noise Level* 18.1 dB(A)
Power Supply Unit / Adapter 36W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption* 10.52 W (Access)
4.97 W (HDD Hibernation)
British Thermal Unit 35.90 BTU/hr (Access)
16.96 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature 5°C to 40°C (40°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty 2 Years
  • Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
  • Noise Level Testing Environment: Fully loaded with Seagate 1TB ST31000520AS hard drive(s) in idle; Two G.R.A.S. Type 40AE microphones, each set up at 1 meter away from the Synology NAS front and rear; Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
General DSM Specifications:
Networking protocol CIFS, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP, OpenVPN , L2TP)
File system
  • Internal: ext4
  • External: ext4, ext3, FAT, NTFS, HFS+ (read only)
Supported RAID type Basic
Storage management
  • Maximum single volume size: 16TB
  • Maximum internal volume: 1
  • Maximum iSCSI Target: 10
  • Maximum iSCSI LUN: 10
  • Supported RAID Type: Not supported
File sharing capability
  • Maximum user accounts: 512
  • Maximum groups: 128
  • Maximum shared folders: 256
  • Maximum concurrent CIFS/AFP/FTP/File Station connections: 64
Privilege Windows Access Control List (ACL)
Directory service Windows AD Integration: Domain Users login via Samba (CIFS)/AFP/FTP/File Station, LDAP integration
Security FTP over SSL/TLS, IP Auto-Block, Firewall, Encrypted Network Backup over Rsync, HTTPS Connection
Utilities Synology Assistant, Cloud Station, Evidence Integrity Authenticator
Supported client Windows XP onward, Mac OS X 10.5 onward, Ubuntu 9.04 onward
Supported browser Chrome, Firefox, Internet Explorer: 9 onwards, Safari 8 onwards, Safari (iOS 7 onwards on iPad), Chrome (Android 4.0 onwards on tablets)
Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svensk, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český
Packages and Applications:
File Station Virtual Drive, Remote Folder
Backup Solutions Network Backup, Local Backup, Desktop Backup; Shared Folder Sync - Max Task Number: 2, Configuration Backup
FTP Server Bandwidth Control, Custom FTP Passive Port Range, Anonymous FTP, Transfer Log
Printer Server Max Printer #: 2, Printing Protocols: LPR, CIFS, IPP, Apple iOS Printing, Google Cloud Print™, Multi Functional Print Server (MFP functions are for Windows PC only)
Storage Analyzer Volume and quota usage, total size of files, volume usage and trends based on past usage, size of shared folders, largest/most/least frequently modified files
Security Advisor Malware detection/removal, user account/password, network, system-related security scan
Log Center SSL Connection, Log Rotation: 6 months, 1 year, 2 years, 3 years, Email Notification
Antivirus Essential Full System Scan, Scheduled Scan, White List Customization, Virus Definition Auto Update
Surveillance Station Default IP cam #: 2, MAX IP cam # (licenses required): 5 (with 2 free licenses to install 2 IP cameras. Additional licenses can be purchased to expand the license quota.)
VPN Server Maximum Connections: 5, VPN Method: PPTP, OpenVPN, L2TP
Web Station Virtual Host (up to 30 websites), PHP/MySQL, 3rd-Party Applications Support
Mail Server Supported Mail Server Protocols: POP3, SMTP, IMAP
Mail Station Webmail Interface for Mail Server, Receiving Mails from Multiple POP3 Mailboxes, Customizable SMTP Server
Cloud Station Maximum Concurrent File Transfers: 64, Retain Historical and Deleted File Versions
Cloud Sync Data Sync with Public Cloud Services: Dropbox, Google Drive, Baidu
DLNA/UPnP Media Server DLNA certified, PS3/PS4/Xbox 360/Xbox One support
Note Station Rich-text note organization with versioning, encryption, sharing, media embedding and attachments
Download Station Supported Download Protocols: BT/HTTP/FTP/NZB/eMule
Maximum Concurrent Download Tasks : 20
Other packages Photo Station, Audio Station, iTunes Server, 3rd-party packages
iOS/Android applications DS cloud, DS file, DS finder, DS cam, DS note, DS audio, DS get, DS photo, DS video
Windows Phone applications DS audio, DS download, DS file, DS finder, DS photo+, DS video
Environment & Packaging:
Environment RoHS Compliant
Packaging Content
  • DS115j main unit
  • Welcome note
  • Accessory pack
  • AC power adapter
  • RJ-45 LAN cable
Optional Accessories
  • Remote
  • Camera License Pack
  • 2.5” Disk Holder Type C

*Model specifications are subject to change without notice. Please refer to for the latest information.
1 The performance figures could vary on different environments.


1-bay NAS

Synology strives to enhance the performance of our NAS with every software update, even long after a product is launched. For enterprises and users that demand uncompromising performance from their servers, check the figures below to find the most suitable choice.

1GbE SMB - Sequential Throughput (64KB)

Model DS116 DS115j
Read 112.98 100.29
Write 112.68 64.3

1GbE SMB - Sequential Throughput (64KB)

1GbE SMB - Sequential Throughput via Encrypted Shared Folder (64KB)

Model DS116 DS115j
Read 112.9 30.36
Write 93.37 12.41

1GbE SMB - Sequential Throughput via Encrypted Shared Folder (64KB)

1GbE SMB - Windows File Transfer (3GB file x 1)

Model DS116 DS115j
Windows Download 112.21 98.74
Windows Upload 111.28 62.17

1GbE SMB - Windows File Transfer (3GB file x 1) class="img-responsive center-block"

1GbE SMB - Windows File Transfer (1MB file x 3000)

Model DS116 DS115j
Windows Download 84.97 61.57
Windows Upload 62.03 33.09

1GbE SMB - Windows File Transfer (1MB file x 3000) class="img-responsive center-block"

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (3GB file x 1)

Model DS116 DS115j
Windows Download 58.62 25.02
Windows Upload 43.74 12.64

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (3GB file x 1)

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (1MB file x 3000)

Model DS116 DS115j
Windows Download 46.31 21.32
Windows Upload 27.21 8.28

1GbE SMB - Windows File Transfer via Encrypted Shared Folder (1MB file x 3000)

1GbE AFP - Mac File Transfer (3GB file x 1)

Model DS116 DS115j
AFP Download 93.82 85.07
AFP Upload 93.41 59.66

1GbE AFP - Mac File Transfer (3GB file x 1)

1GbE AFP - Mac File Transfer (1MB file x 3000)

Model DS116 DS115j
AFP Download 51.62 43.26
AFP Upload 61.24 35.3

1GbE AFP - Mac File Transfer (1MB file x 3000)

1GbE Web Server - HTML Response Efficiency

Model DS116 DS115j
Responses per second 33740.35 3668.92

1GbE Web Server - HTML Response Efficiency

1GbE Web Server - PHP Response Efficiency

Model DS116 DS115j
Responses per second 6020.35 761.35

1GbE Web Server - PHP Response Efficiency


  • Operating System: DSM 6.1
  • Volume Type: RAID 5 (4 bay), RAID 1 (2 bay), Basic (1 bay)
  • Drives:
    • DS416slim: Fully loaded with Intel 535 Series 240GB SSDSC2BW240H6 SSD
    • Other models: Fully loaded with Seagate ST6000VN0001 6TB HDD
  • File System:
    • EXT4:
      • [1-bay] DS116, DS115j
      • [2-bay] RS217, DS216, DS216play, DS216j, DS216se
      • [4-bay] RS816, DS418, DS418j, DS416slim
    • Btrfs:
      • [2-bay] DS718+, DS218+
      • [4-bay] RS815(RP)+, DS918+, DS418play
  • 1GbE Network Environments:
    • For models with single 1GbE LAN port: MTU 1500; connected to 1 client PC via HP 2530-48G switch
    • For models with multiple 1GbE LAN ports: Link Aggregation is enabled for Sequential Throughput tests; MTU 1500; connected to client PCs via HP 2530-48G switch

Client PC:

  • 1GbE SMB Network Environments:
    • For NAS models with single 1GbE LAN port: Intel Core i7-3770 3.40GHz; 32GB DDR3-1866; RAMdisk with 14GB source partition and 14GB target partition; Intel Gigabit CT; MTU 1500; Windows 7 64-bit
    • For NAS models with multiple 1GbE LAN ports: Intel Core i7-3770 3.40GHz; 4GB DDR3-1600; Intel 520 (120GB) SSD x 2; striped volume; Intel Gigabit CT; MTU 1500; Windows 7 64-bit
  • IOMeter setting for Sequential Throughput tests: Continuously read from/write to a single 8GB file for 3 minutes; Block size: 64KB
  • 1GbE Web Server Network Environment:
    • Intel Core i7-6700 3.40GHz; 16GB DDR4-2133; Intel Gigabit CT; MTU 1500; Ubuntu 16.04
    • (html) wrk -t 8 -c [10-250] -d 60s -H "Host: benchmark" http://DS_IP/index.html
    • (php) wrk -t 8 -c [10-250] -d 60s -H "Host: benchmark"http://DS_IP/echo.php
  • 1GbE AFP Network Environment: Mac Mini; 2.3GHz 4 core Intel Core i7; 16GB DDR3-1600; RAMdisk with 7GB source partition and 4GB target partition; MTU 1500; OSX 10.9

Special Note:

  • Performance figures are achieved in the Synology lab by using very powerful client computers with optimized network settings, and could vary in different environments. Regular office desktop or notebook computers may not be able to reproduce these figures.


Download the Synology DiskStation DS115j Data Sheet (PDF).

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