Massive storage capacity with 4K Ultra HD capability

Synology DS418play is designed to be your ideal, centralized multimedia hub with over 40TB of raw storage capacity, allowing you to transcode up to 2 channels of H.265/H.264 4K videos at the same time. With a powerful built-in AES-NI hardware encryption engine, DS418play also provides excellent encrypted file transmission.



4K Multimedia Server

Access and stream your 4K media content anytime and anywhere. DS418play supports 4K H.264/H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on the fly on other computers, smartphones, and media players that originally do not support Ultra HD formats.



Next-generation file system for better data protection

The Btrfs file system introduces advanced storage technologies and optimized snapshots to prevent data corruption and reduce maintenance overhead. While ensuring high-level data integrity, it also offers flexible, efficient data protection and recovery tools.



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.



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.

CPU
CPU Model : Intel Celeron J3355
CPU Architecture: 64-bit
CPU Frequency:Dual Core 2.0 burst up to 2.5 GHz
Hardware Encryption Engine (AES-NI) : Yes
Hardware Transcoding Engine: H.264 (AVC), H.265 (HEVC), MPEG-2 and VC-1 maximum resolution: 4K (4096 x 2160) maximum frame rate per second (FPS): 30

Memory
System Memory: 2 GB DDR3L
Memory Module Pre-installed: 2GB (1 x 2GB)
Total Memory Slots: 2
Memory Expandable up to: 6 GB (2 GB + 4 GB)
Storage
Drive Bays: 4

Compatible Drive Type :
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity: 48 TB (12 TB drive x 4) (Capacity may vary by RAID types)
Maximum Single Volume Size: 108 TB
Hot Swappable Drive: Yes

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.
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: 2 (with Link Aggregation / Failover support)
USB 3.0 Port: 2
File System
Internal Drives:
Btrfs
EXT4

External Drives:
Btrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT

Notes: exFAT Access is purchased separately in Package Center.
Others
System Fan: 92 mm x 92 mm x 2 pcs

Fan Speed Mode:
Full-Speed Mode
Cool Mode
Quiet Mode
Brightness adjustable front LED indicators:Yes
Power Recovery:Yes
Noise Level: 20.5 dB(A)
Scheduled Power On/Off :Yes
Wake on LAN/WAN: Yes
Power Supply Unit / Adapter: 90W
AC Input Power Voltage: 100V to 240V AC
Power Frequency: 50/60 Hz, Single Phase

Power Consumption:
29.01 W (Access)
5.57 W (HDD Hibernation)

British Thermal Unit:
98.98 BTU/hr (Access)
19.01 BTU/hr (HDD Hibernation)
Environment Temperature
Operating Temperature:5^oC to 40^oC (40^oF to 104^oF)
Storage Temperature: -20^oC to 60^oC (-5^oF to 140^oF)
Relative Humidity: 5% to 95% RH

Certification
FCC Class B
CE Class B
BSMI Class B
Notes
Power consumption is measured when fully loaded with Western Digital 1TB WD10JFCX hard drive(s).
Storage Management
Maximum Internal Volume Number: 256
Maximum iSCSI Target Number: 32
Maximum iSCSI LUN: 256
iSCSI LUN Clone/Snapshot, Windows ODX:Yes

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

Volume Expansion by Adding a HDD:
Synology Hybrid RAID
RAID 5
JBOD

Global Hot Spare Supported RAID Type:
Synology Hybrid RAID
RAID 1
RAID 5

SSD Support
SSD TRIM: Yes
File Sharing Capacity
Maximum Local User Accounts: 2048
Maximum Local Groups: 256
Maximum Shared Folder: 256
Maximum Shared Folder Sync Tasks: 4
Maximum Concurrent CIFS/AFP/FTP Connections: 200
Windows Access Control List (ACL) Integration:Yes
NFS Kerberos Authentication: Yes
Log Center:Yes
Syslog Events per Second: 400
Antivirus by McAfee (Trial): Yes

Chat: Yes

Maximum Users:
1000

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: Yes

Maximum Number of Concurrently Connected Devices:
200

Maximum Number of Concurrently Connected Devices (with RAM expansion):
300

Maximum Number of Synced Files (btrfs):
1,000,000 / single file reaction time 834 ms

Maximum Number of Synced Files (ext4):
1,000,000 / single file reaction time 484 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: Yes

Maximum Concurrent Download Tasks:
80

exFAT Access (optional): Yes

MailPlus / MailPlus Server: Yes

Free Email Accounts:
5 (Licenses required for additional accounts)

Recommended MailPlus Client Number:
Up to 45 (Btrfs) / 45 (ext4)

Maximum Server Performance:
181,000 (Btrfs) / 194,000 (ext4) emails per day, approx. 5.5 GB (Btrfs) / 5.9 GB (ext4)

Notes:
The CPU and RAM usages were both under 80% when testing recommended client numbers.
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: Yes

DLNA Compliance: Yes

Office: Yes

Maximum Users:
200

Maximum Simultaneous Editing Users:
60

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
Snapshot Replication: Yes

Maximum Snapshots per Shared Folder:
1024

Maximum Snapshots of all Shared Folder:
65536

Surveillance Station: Yes

Maximum IP cam (Licenses required):
25 (including 2 Free License)

Total FPS (H.264):
750 FPS at 720p (1280x720)
375 FPS at 1080p (1920x1080)
250 FPS at 3M (2048x1536)
200 FPS at 5M (2591x1944)
120 FPS at 4K (3840x2160)

Total FPS (H.265):
750 FPS at 720p (1280x720)
750 FPS at 1080p (1920x1080)
450 FPS at 3M (2048x1536)
250 FPS at 5M (2591x1944)
200 FPS at 4K (3840x2160)

Total FPS (MJPEG):
450 FPS at 720p (1280x720)
250 FPS at 1080p (1920x1080)
160 FPS at 3M (2048x1536)
130 FPS at 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: Yes

Video Transcoding:
4K Group 1

Maximum Transcoding Channel Number
: 2 channel, 30 FPS at 4K (4096 x 2160), H.264 (AVC)/H.265 (HEVC) or
2 channel, 30 FPS at 1080p (1920x1080), H.264 (AVC)/H.265 (HEVC)/MPEG-2/VC-1

VPN Server: Yes

Maximum Connections:
20
Environment and Packaging
Environment: RoHS Compliant

Packaging Content:
Main Unit X 1
Accessory Pack X 1
AC Power Adapter X 1
AC Power Cord X 1
RJ-45 LAN Cable X 2
Quick Installation Guide X 1

Optional Accessories:
Surveillance Device License Pack
D3NS1866L-4G RAM Module
VS360HD
VS960HD
Item Dimension (L inchxW inchxH inch)
11 x 9 x 10

Weight
8.79 lb

Warranty Information
2 Years