Ideal Entertainment Center with 4K Ultra HD Capability
Designed for multimedia enthusiasts, DS218play supports real-time transcoding of 4K Ultra HD source content. With the availability of centralized management, DS218play is ideal for fast file sharing and reliable backup for all types of devices.
Enjoy 4K videos on the go
Access and stream your 4K media content anytime and anywhere. DS218play supports 4K live transcoding via Video Station and DS video, allowing 4K videos to be instantly converted and played on TV, smartphone, and other media players that originally do not support Ultra HD formats.
Access your multimedia content anytime, anywhere with an intuitive web-based interface.
Seamless integration with your mobile devices
Synology mobile applications are designed to allow quick and secure access to your data wherever you are.
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 Model:Realtek RTD1296
CPU Frequency:Quad Core 1.4 GHz
Hardware Encryption Engine:Yes
Hardware Transcoding Engine:10-bit H.265 (HEVC), MPEG-4 Part 2, MPEG-2, VC-1 maximum resolution: 4K (4096 x 2160) maximum frame rate per second (FPS): 30
System Memory:1 GB DDR4
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:24 TB (12 TB drive x 2) (Capacity may vary by RAID types)
Maximum Single Volume Size:108 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.
RJ-45 1GbE LAN Port:1
USB 3.0 Port:2
NotesexFAT Access is purchased separately in Package Center.
Size (Height x Width x Depth):165 mm x 100 mm x 225.5 mm
System Fan:92 mm x 92 mm x 1 pcs
Fan Speed Mode:Full-Speed Mode
Brightness adjustable front LED indicators:Yes
Noise Level:19.9 dB(A)
Scheduled Power On/Off:Yes
Wake on LAN/WAN:Yes
Power Supply Unit / Adapter:60W
AC Input Power Voltage:100V to 240V AC
Power Frequency:50/60 Hz, Single Phase
Power Consumption:16.79 W (Access)
5.16 W (HDD Hibernation)
British Thermal Unit:57.29 BTU/hr (Access)
17.61 BTU/hr (HDD Hibernation)
Operating Temperature:5oC to 40oC (40oF to 104oF)
Storage Temperature:-20oC to 60oC (-5oF to 140oF)
Relative Humidity:5% to 95% RH
Certification:FCC Class B
CE Class B
BSMI Class B
Maximum Internal Volume Number:256
Maximum iSCSI Target Number:10
Maximum iSCSI LUN:10
Supported RAID Type:Synology Hybrid RAID
RAID Migration:Basic to RAID 1
Volume Expansion with Larger HDDs:Synology Hybrid RAID
Volume Expansion by Adding a HDD:Synology Hybrid RAID
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
Syslog Events per Second:400
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.
Cloud Station Server:Yes
Maximum Number of Concurrently Connected Devices:200
Maximum Number of Synced Files (ext4):200,000 / single file reaction time 687 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.
Maximum Concurrent Download Tasks:50
exFAT Access (optional):Yes
Maximum Simultaneous Editing Users30
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
Maximum IP cam (Licenses required):15 (including 2 Free License)
Total FPS (H.264):450 FPS at 720p (1280x720)
180 FPS at 1080p (19201080)
110 FPS at 3M (2048x1536)
80 FPS at 5M (2591x1944)
40 FPS at 4K (3840x2160)
Total FPS (H.265):450 FPS at 720p (1280x720)
450 FPS at 1080p (19201080)
210 FPS at 3M (2048x1536)
120 FPS at 5M (2591x1944)
60 FPS at 4K (3840x2160)
Total FPS (MJPEG):210 FPS at 720p (1280x720)
70 FPS at 1080p (19201080)
50 FPS at 3M (2048x1536)
30 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 Transcoding:4K Group 3
Maximum Transcoding Channel Number:1 channel, 30 FPS at 4K (4096 x 2160), H.265 (HEVC), 10-bit or
1 channel, 30 FPS at 1080p (19201080), H.264 (AVC)/H.265 (HEVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Environment and Packaging
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 1
Quick Installation Guide X 1
Optional Accessories:Surveillance Device License Pack
Disk Holder: Type C
Item Dimension (L inchxW inchxH inch)
11 x 10 x 5
Orders below $100: $10 flat rate
Orders above $100: FREE
Currently we only ship within the US.
You have 14 calendar days to return an item from the date you received it.
To be eligible for a return, your item must be unopened in the same condition that you received it.
Your item must be in the original packaging.
Your item needs to have the receipt or proof of purchase.
Once we receive your item, we will inspect it and notify you that we have received your returned
item. We will immediately notify you on the status of your refund after inspecting the item.
If your return is approved, we will initiate a refund to your credit card (or original method of payment).
You will receive the credit within a certain amount of days, depending on your card issuer's policies.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are nonrefundable.
If you receive a refund, the cost of return shipping will be deducted from your refund.
If you have any questions on how to return your item to us, contact us.