Synology DiskStation DS2419+, 24x SATA server, 4x 1Gb LAN

Hardware Specifications

CPU Model Intel Atom C3538
CPU Architecture 64-bit
CPU Frequency Quad Core 2.1 GHz
Hardware Encryption Engine (AES-NI)

Memory
System Memory 4 GB DDR4
Memory Module Pre-installed 4 GB (4 GB x 1)
Total Memory Slots 2
Memory Expandable up to 32 GB (16 GB x 2)
Notes
Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance.

Storage
Drive Bays 12
Maximum Drive Bays with Expansion Unit 24
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity 168 TB (14 TB drive x 12) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units 336 TB (168 TB + 14 TB drive x 12) (Capacity may vary by RAID types)
Maximum Single Volume Size 108 TB
Hot Swappable Drive

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 raw capacity is not limited by the maximum single volume size. Synology NAS models may utilize capacities over the maximum single volume size as long as each volume created is below the limit. (Learn more)
Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 108TB.

External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
USB 3.0 Port 2
Expansion Port 1

PCIe
PCIe Expansion 1 x Gen3 x8 slot (black, x4 link)
Add-in-card support
M2D18 - Dual M.2 SATA/NVMe SSD adapter card for SSD cache
PCIe Network Interface Card

File System
Internal Drives
Btrfs
EXT4

External Drives
Btrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT*

Notes
exFAT Access is purchased separately in Package Center.

Appearance
Size (Height x Width x Depth) 270 mm x 300 mm x 340 mm
Weight 9.5 kg

Others
System Fan
120 mm x 120 mm x 2 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode

Easy Replacement System Fan
Power Recovery
Noise Level* 22.3 dB(A)
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter 500W
AC Input Power Voltage 100V to 240V AC
Power Frequency 50/60 Hz, Single Phase

Power Consumption*
101.6 W (Access)
43.96 W (System Hibernation)

British Thermal Unit
346.9 BTU/hr (Access)
150.09 BTU/hr (System Hibernation)

Environment Temperature
Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH

Certification
FCC
CE
BSMI
EAC
VCCI
CCC
RCM

Warranty
3 Year Hardware Warranty

Notes
Power consumption is measured when fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Support for Wake on WAN needs switch and routers which recognize Magic Packet.
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 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
Storage Management
Maximum Internal Volume Number 512
Maximum iSCSI Target Number 128
Maximum iSCSI LUN 256
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read/Write Cache (White Paper)
SSD TRIM

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
RAID 6

Global Hot Spare Supported RAID Type
Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10

File Services
File Protocol CIFS/AFP/NFS/FTP/WebDAV
Maximum Concurrent CIFS/AFP/FTP Connections 1,000
Maximum Concurrent CIFS/AFP/FTP Connections (with RAM expansion) 2,000
Windows Access Control List (ACL) Integration  NFS Kerberos Authentication

Account & Shared Folder
Maximum Local User Accounts 2,048
Maximum Local Groups 256
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 16
High Availability Manager
Log Center
Syslog Events per Second 800

Virtualization
VMware vSphere 6 with VAAI
Windows Server 2016
Citrix Ready
OpenStack

Add-on Packages (learn more about the complete add-on package list)
Antivirus by McAfee (Trial)
Central Management System
Chat
Maximum Users 1,500

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 1,000
Maximum Number of Concurrently Connected Devices (with RAM expansion) 2,000
Maximum Number of Hosted Files (btrfs) 1,000,000
Maximum Number of Hosted Files (ext4) 1,000,000

Notes
The maximum number of concurrently connected devices refers to the maximum number of devices that can remain connected at the same time.
The maximum number of hosted files refers to the maximum number of files that can be indexed and hosted by the Cloud Station Server service. RAM expansion was not used during testing.
Non-encrypted shared folders were used during the aforementioned testing.

Document Viewer

Download Station

Maximum Concurrent Download Tasks 80
exFAT Access (optional)
MailPlus / MailPlus Server

Free Email Accounts 5 (Licenses required for additional accounts)
Maximum number of concurrent users Up to 150
Maximum Server Performance 1,484,000 emails per day, approx. 45 GB

Notes
The CPU and RAM usage were both under 80% when testing the maximum number of concurrent users.
For tested models with expandable memory, the maximum amount of RAM was installed.
Read-write SSD cache was enabled in 5-bay (and above) NAS models with 2 SSDs units installed.
The performance of the mail system will slightly decrease in high-availability mode due to data synchronization between the two servers.
Functions that were enabled in all of the tests above: anti-spam, anti-virus, DNSBL, greylist, content scan, full-text search (English only).

Media Server
DLNA Compliance

Moments
Facial recognition
Subject recognition
Auto Color & Rotate
Moments Select

Snapshot Replication

Maximum Snapshots per Shared Folder 1024
Maximum of system snapshots 65536

Surveillance Station

Maximum IP cam (Licenses required) 40 (including 5 Free License) (See All Supported IP Cameras)