Synology Inc.

Synology Certified Refurbished

Access Synology solutions in a cost-effective and environmentally responsible way. All certified refurbished products are put through extensive testing, comply with stringent quality standards, and come with a 2-year warranty.

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Mini in size, versatile in feature

DS419slim is a 4-bay cube-shaped NAS providing on-the-go file access and sharing with secure file transfer. Ideal to serve as your clever and reliable partner, it keeps all your photos, video, and files well-organized.

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CPUDual-core 1.33 GHz

Excellent performanceOver 223 MB/s reading and 94 MB/s writing

NetworkDual 1GbE LAN ports for failover and Link Aggregation

Compact designFour 2.5" hot-swappable drive trays

No more compromising between budget and drive capacity

The unique four 2.5" SSD support and its ultra-compact design make DS419slim come with more flexibility in both RAID configuration and deployment. Putting everything in the palm of your hand, DS419slim delivers higher capacity within a reasonable budget.

Compact Design

Portable cube-shaped design with the longest length less than 15cm and a weight of just 700 grams

2.5" Drive Support

Supports up to four 2.5" SSD

RAID Flexibility

Flexible in RAID configuration with 4 SSDs for better data protection

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Synology Hybrid RAID (SHR) technology

Storage management is easy with Synology Hybrid RAID (SHR) technology. SHR is an automated RAID management system allowing you to easily create and expand storage volumes and migrate RAID types without requiring details on RAID. SHR provides 1 to 2-disk redundancy to safeguard your data during drive failures.

Cost-effectiveSHR maximizes the data capacity of your RAID when different sizes of HDDs are used. Calculate your RAID needs.

Easy ManagementFor novice users who have no technical background and still want to protect their data using RAID technology, a convenient installation wizard will guide you through all the steps during your first installation.

ScalabilityYou can add new disks on the fly in Storage Manager with a simple click. Learn more about SHR.

FlexibilityWhile creating a volume, you can plan ahead and leave empty and unallocated space for future usage.

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 secure, customizable address, so that you can instantly access media and work files on any Internet-connected device at no additional charge.

Powered by Synology DiskStation Manager

Multimedia

Complete multimedia solution for management, streaming, and playback.

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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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Collaboration Suite

Satisfy all team collaboration needs behind the safety of your own private cloud with Synology Office, Calendar, and Chat.

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Security

Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.

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Hardware Overview

1Status indicator
2Power indicator
3Power button

4LAN indicator
5Drive status indicator
6USB 3.0 port

7Drive tray
8USB 3.0 port
91GbE RJ-45 port

10Reset button
11Power port
12Kensington Security Slot

Hardware Specs

Software Specs

Hardware Specifications
CPU
CPU	CPU Model	Marvell Armada 385 88F6820
	CPU Quantity	1
	CPU Cores	2
	CPU Threads	2
	CPU Architecture	32-bit
	CPU Frequency	1.33 GHz
	Hardware Encryption Engine
Memory
Memory	System Memory	512 MB DDR3 non-ECC
	Notes	Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.
Storage
Storage	Drive Bays	4
	Drive Type (See all supported drives)	2.5" SATA HDD 2.5" SATA SSD
	Hot Swappable Drive*
External Ports
External Ports	RJ-45 1GbE LAN Port	2
	USB 3.2 Gen 1 Port	2
Appearance
Appearance	Size (Height x Width x Depth)	120 mm x 105 mm x 142 mm
	Weight	0.66 kg
Others
Others	System Fan	60 mm x 60 mm x 1 pcs
	Fan Speed Mode	Cool Mode Quiet Mode Low-power Mode
	Easy Replacement System Fan
	Brightness Adjustable Front LED Indicators
	Power Recovery
	Noise Level*	20.3 dB(A)
	Scheduled Power On / Off
	Wake on LAN / WAN
	Power Supply Unit / Adapter	30 watts
	AC Input Power Voltage	100V to 240V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption	20.28 watts (Access) 7.27 watts (HDD Hibernation)
	British Thermal Unit	69.15 BTU/hr (Access) 24.79 BTU/hr (HDD Hibernation)
	Notes	Power consumption is measured when it is fully loaded with Western Digital 1TB WD10JFCX hard drive(s). Noise Level Testing Environment: Fully loaded with WD 1TB WD10JFCX hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 17.2 dB(A); Temperature: 23.6˚C; Humidity: 58.2%.
Temperature
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)
	Operating Humidity	8% to 80% RH
	Storage Humidity	5% to 95% RH
Certification
Certification	FCC CE BSMI EAC CCC KC VCCI RCM
Warranty
Warranty	2 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
Environment	RoHS Compliant
Packaging Content
Packaging Content	Main Unit X 1 AC Power Adapter X 1 RJ-45 LAN Cable X 2 Quick Installation Guide X 1
Optional Accessories
Optional Accessories	Enterprise Series 2.5" SATA SSD: SAT5200 Series
Compatibility
Compatibility	Synology Compatibility List

DSM Specifications
Storage Management
Storage Management	Maximum Single Volume Size	16 TB
	Maximum Internal Volume Number	64
	Supported RAID Type	Synology Hybrid RAID Basic JBOD RAID 0 RAID 1 RAID 5 RAID 6 RAID 10
	RAID Migration	Basic to RAID 1 Basic to RAID 5 RAID 1 to RAID 5 RAID 5 to RAID 6
	Volume Expansion with Larger HDDs	Synology Hybrid RAID RAID 1 RAID 5 RAID 6 RAID 10
	Volume Expansion by Adding a HDD	Synology Hybrid RAID JBOD RAID 5
	Global Hot Spare Supported RAID Type	Synology Hybrid RAID RAID 1 RAID 5
	Notes	Actual maximum storage pool and volume sizes depend on drive sizes used, the number of drive bays available, and the RAID configuration. Usable capacity for each volume will be lower than the maximum volume size and is dependent on the filesystem and the amount of system metadata stored.
File System
File System	Internal Drives	ext4
	External Drives	ext4 ext3 FAT32 NTFS exFAT
	Notes	HFS+ is read only, max 2TB volume size.
File Services
File Services	File Protocol	SMB AFP NFS FTP WebDAV Rsync
	Maximum Concurrent SMB/AFP/FTP Connections	100
	Windows Access Control List (ACL) Integration
	NFS Kerberos Authentication
	Notes	The testing standard was based on the maximum number of concurrent connections supported by this model. During the testing, 25% of the connections were used to transfer files concurrently. The transfer process guaranteed that the connections were not interrupted; the minimum transfer speed was not guaranteed.
Account & Shared Folder
Account & Shared Folder	Maximum Local User Accounts	1,024
	Maximum Local Groups	256
	Maximum Shared Folder	256
	Maximum Shared Folder Sync Tasks	2
Hyper Backup
Hyper Backup	Folder and Package Backup
Log Center
Log Center	Syslog Events per Second	100
General Specifications
General Specifications	Supported Protocols	SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
	Supported Browsers	Chrome Firefox Edge Safari
	Supported Language	English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文
	Notes	For an updated list of supported browser versions, check the DSM Technical Specifications.
Add-on Packages view the complete package list
Synology Chat
Synology Chat
Download Station
Download Station	Maximum Concurrent Download Tasks	50
SAN Manager
SAN Manager	Maximum iSCSI Target Number	10
	Maximum LUN	10
Media Server
Media Server	DLNA Compliance
Synology Photos
Synology Photos	Facial Recognition
Surveillance Station
Surveillance Station	Default Licenses	2 (Additional cameras require purchase of licenses)
	Maximum IP Cameras and Total FPS (H.264)	1080p: 8 channels, 150 FPS 3M: 8 channels, 100 FPS 5M: 8 channels, 40 FPS 4K: 2 channels, 20 FPS
	Maximum IP Cameras and Total FPS (H.265)	1080p: 8 channels, 240 FPS 3M: 7 channels, 210 FPS 5M: 6 channels, 174 FPS 4K: 6 channels, 72 FPS
	Notes	Performance figures are obtained from testing conducted with the device fully populated with drives, with their default memory configuration, and under a continuous recording setup. Actual system capabilities may vary based on configuration, drive performance, enabled features, and the presence of additional workloads. Use NVR Selector to quickly find a suitable model based on your requirements. The number of video channels that can be viewed simultaneously is double the maximum number of cameras for the same codec and resolution.
Synology Drive
Synology Drive	Recommended Number of Concurrent Sync Clients	200
	Maximum Number of Hosted Files	100,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
	Notes	The suggested maximum number of users is based on the following workload: 20% of users randomly perform file operations (upload, download, move, and delete), and 80% of users are logged in but idle. Learn more Models with SSD support are tested with a single SSD volume. Exceeding the recommended numbers above will not block application operations, but may result in longer response time. EXT4 file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Synology Office	Maximum Number of Users	100
	Notes	The suggested maximum number of users is based on the following workload: 20% of users are executing random actions at an average of 30-second intervals, and 80% of users are logged in and viewing a file. Learn more Models with SSD support are tested with a single SSD volume. Client performance may affect maximum simultaneous editing users. Client PCs used for testing: Intel Core i3-3220 / 8GB RAM
VPN Server
VPN Server	Maximum Connections	10

Notes: Model specifications are subject to change without prior notice. The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time. The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations. If usage requirements exceed the specifications above, please contact our regional partners for professional advice.