DiskStation DS115j

Download Performance Compatibility Compare
Download Performance Compatibility Compare

DiskStation DS115j

Simplified yet powerful private cloud solution for home users

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.

Fast Performance

100 MB/s reading performance

Eco-friendly

4.97 W in HDD hibernation/10.52 W in access

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. https://customID.quickconnect.to), so that you can instantly access media and work files on any Windows/Mac/Linux computer, laptop, or mobile device without additional charge.

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.

Seamless integration with your mobile devices

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

Powered by Synology DSM

Surveillance Station

Complete surveillance solution for recording, monitoring, and management.

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Desktop Backup

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

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File Server/Management

Powerful built-in file management and sharing services.

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DSM UI

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

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Security

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

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Multimedia

Complete multimedia solution for management, streaming, and playback.

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  • 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
Hardware Specifications
CPU
CPU Model Marvell Armada 370 88F6707
CPU Architecture 32-bit
CPU Frequency 800 MHz
Hardware Encryption Engine
Memory
System Memory 256 MB DDR3
Storage
Drive Bays 1
Compatible Drive Type* (See all supported drives)
  • 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 drive x 1) (Capacity may vary by RAID types)
Maximum Single Volume Size 16 TB
Notes
  • "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. (Learn more)
External Ports
RJ-45 1GbE LAN Port 1
USB 2.0 Port 2
File System
Internal Drives EXT4
External Drives
  • EXT4
  • EXT3
  • FAT
  • NTFS
  • HFS+*
  • exFAT*
Notes
  • HFS+ is read only, max 2TB volume size.
  • exFAT Access is purchased separately in Package Center.
Appearance
Size (Height x Width x Depth) 166 mm x 71 mm x 224 mm
Weight 0.71 kg
Others
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 35°C (40°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
  • FCC Class B
  • CE Class B
  • BSMI Class B
Warranty 2 Years
Notes
  • 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%
DSM Specifications ( See more )
Storage Management
Maximum Internal Volume Number 1
Maximum iSCSI Target Number 10
Maximum iSCSI LUN 10
Supported RAID Type Basic
File Sharing Capacity
Maximum Local User Accounts 512
Maximum Local Groups 128
Maximum Shared Folder 256
Maximum Shared Folder Sync Tasks 2
Maximum Concurrent CIFS/AFP/FTP Connections 64
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Log Center
Syslog Events per Second 50
Add-on Packages (learn more about the complete add-on package list)
Notes
  • The number of concurrent HTTP connections for Chat was configured to the maximum.
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
Cloud Station Server
Maximum Number of Concurrently Connected Devices 64
Maximum Number of Synced Files (ext4) 10,000 / single file reaction time 1990 ms
Notes
  • The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time. For more information on file processing capability, please refer to the reaction time for file processing.
  • File reaction time refers to the preparation time required for other devices to start downloading a 1KByte file from a Synology NAS after the file has been added to the NAS. RAM expansion was not used during testing.
  • Non-encrypted shared folders were used during the aforementioned testing.
Download Station
Maximum Concurrent Download Tasks 20
exFAT Access (optional)
Media Server
DLNA Compliance
Office
Maximum Users 3
Maximum Simultaneous Editing Users 3
Notes
  • CPU and RAM usage were both under 80% when the number of maximum users was reached.
  • For tested models with expandable memory, the maximum amount of RAM was installed.
  • Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
Surveillance Station
Maximum IP cam (Licenses required) 5 (including 2 Free License) (See All Supported IP Cameras)
Total FPS (H.264)* 50 FPS @ 720p (1280x720)
20 FPS @ 1080p (1920×1080)
10 FPS @ 3M (2048x1536)
10 FPS @ 5M (2591x1944)
Total FPS (MJPEG)* 20 FPS @ 720p (1280x720)
10 FPS @ 1080p (1920×1080)
10 FPS @ 3M (2048x1536)
6 FPS @ 5M (2591x1944)
Notes Surveillance Station throughput is tested with Axis network camera, using continuous recording with live view from Surveillance Station and motion detection by camera. Live view and recording are sharing the same stream from the camera.
Video Station
Video Transcoding Group 2 (See more)
VPN Server
Maximum Connections 5
Environment & Packaging
Environment RoHS Compliant
Packaging Content
  • Main Unit X 1
  • Welcome Note X 1
  • Accessory Pack X 1
  • AC Power Adapter X 1
  • RJ-45 LAN Cable X 1
Optional Accessories
  • Surveillance Device License Pack
  • Disk Holder: Type C
  • VS360HD
General
Networking Protocols
  • CIFS
  • AFP
  • NFS
  • FTP
  • WebDAV
  • CalDAV
  • iSCSI
  • Telnet
  • SSH
  • SNMP
  • VPN (PPTP, OpenVPN)
Windows AD Domain Integration Domain Users login via Samba/AFP/FTP/File Station
HDD Management
  • HDD Hibernation
  • S.M.A.R.T.
  • Dynamic Bad Sector Mapping
Security
  • FTP over SSL/TLS
  • IP Auto-Block
  • Firewall
  • Encrypted Network Backup over Rsync
  • HTTPS Connection
Utilities Synology Assistant
Supported Clients
  • Windows 7 and 10
  • Mac OS X 10.11 onward
Supported Browsers
  • Chrome
  • Firefox
  • Internet Explorer 10 onwards
  • Safari 10 onwards
  • Safari (iOS 10 onwards)
  • Chrome (Android 6.0 onwards)
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, 日本語, 한국어, 繁體中文, 简体中文
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