* Supplied as default RAM installed + extra RAM as specified above.
* If we are building a NAS solution for you, the extra RAM will be installed and tested.
High-capacity and scalable NAS to serve as a centralized backup destination or a file server for small- and medium-sized businesses
Scalable Storage Server On-Demand
RS2818RP+ is an ideal storage solution for small- and medium-sized businesses with great flexibility in terms of expandable storage capacity, upgradable memory and optional high-speed NIC support. It fits perfectly as a backup target for distributed businesses, a centralized file server, or a backup target for employee workstations in a growing business.
CPU - quad-core 2.1GHz
RAM options - 4GB DDR4 UDIMM, up to 64GB
Network - 4 x 1GbE port, optional 10GbE NIC support
Chassis - 3U design, 16 SATA drive bays
Robust scalability and reliability
RS2818RP+ provides large, scalable storage capacity with affordable total cost of ownership. The 3U chassis design accommodates up to 16 drives and the storage capacity can be further scaled when connected to one Synology Expansion Unit RX1217 or RX1217RP1, providing a total drive count of 28 without disrupting host services.
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.
Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders
Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots
File or folder level data restoration makes data recovery fast and flexible
Automatic file self-healing detects and recovers corrupted files without user intervention
Ultimate Backup Solution
RS2818RP+ integrates various backup applications to safeguard your important data on any device with an intuitive user interface and durable storage technologies.
Active Backup for Server
An agentless backup solution protects data from Windows and Linux servers through SMB and Rsync to minimize deployment and management costs.
Comprehensively backup your data to a local shared folder, an external device, another Synology NAS, an rsync server, or a public cloud to ensure data safety.
Safeguard your PC with Cloud Station Backup. Effortlessly back up data stored on macOS to Synology NAS with Time Machine.
Active Backup for Office 365/ G Suite
On-premise backup solution with a centralized dashboard. Optimize storage efficiency with single instancing and block-level deduplication technology.
Office 365 G Suite
Fully certified storage virtualization solutions
Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.
Digital asset protection
Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes.
Analyzes system settings, password strength, network preferences, and removes any possible malware.
A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources.
AES 256-bit encryption
Encrypt shared folders and network data transmission to keep data from unauthorized access.
Prevent others from logging in to your DSM by generating a one-time password (OTP) on your mobile device.
Customize the trust level in Package Center to avoid installing packages from untrusted sources, safeguarding your NAS from unknown or tampered package files.
Powered by Synology DSM
Award-winning operating system with an intuitive user interface and powerful capabilities.
Public Cloud Integration
Backup and synchronize data easily between your public cloud accounts and your NAS.
Ensures seamless service transition between clustered servers in the event of a server failure.
Comprehensive built-in security tools are constantly updated to tackle evolving threats and protect your devices.
Provides schedulable and instantaneous data protection for shared folders and virtual machines on iSCSI LUNs in the event of disaster.
Simplified backup solution for your Mac, PC, and mobile devices.
RS2818RP+ supports one Synology expansion unit RX1217/RX1217RP, sold separately.
Intel Atom C3538
Quad Core 2.1 GHz
Hardware Encryption Engine (AES-NI)
4 GB DDR4
Memory Module Pre-installed
4GB (1 x 4GB)
Total Memory Slots
Memory Expandable up to
64 GB (16 GB x 4)
Maximum Drive Bays with Expansion Unit
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Maximum Internal Raw Capacity
192 TB (12 TB drive x 16) (Capacity may vary by RAID types)
Maximum Raw Capacity with Expansion Units
336 TB (192 TB + 12 TB drive x 12) (Capacity may vary by RAID types)
Maximum Single Volume Size
Hot Swappable Drive
"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.
Expansion of the internal volume is only supported if the combined single volume size does not exceed the maximum limit of 200TB.
RJ-45 1GbE LAN Port
4 (with Link Aggregation / Failover support)
USB 3.0 Port
1 x Gen3 x8 slot (black, x4 link)
M2D17 - Dual M.2 SSD adapter card for SSD cache
PCIe Network Interface Card
exFAT Access is purchased separately in Package Center.
Size (Height x Width x Depth)
132.3 mm x 482 mm x 656.5 mm
80 mm x 80 mm x 3 pcs
Fan Speed Mode
Easy Replacement System Fan
Scheduled Power On/Off
Wake on LAN/WAN
Power Supply Unit / Adapter
2 X 500W
AC Input Power Voltage
100V to 240V AC
50/60 Hz, Single Phase
138.1 W (Access, for RP model)
66.7 W (HDD Hibernation, for RP model)
British Thermal Unit
471.5 BTU/hr (Access, for RP model)
227.7 BTU/hr (HDD Hibernation, for RP model)
Redundant Power Supply (for xs+ and RP model)
5°C to 35°C (40°F to 95°F)
-20°C to 60°C (-5°F to 140°F)
5% to 95% RH
3 Year Hardware Warranty, Extendable to 5 Year Coverage - EW202
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 ( See more )
Maximum Internal Volume Number
Maximum iSCSI Target Number
Maximum iSCSI LUN
iSCSI LUN Clone/Snapshot, Windows ODX
SSD Read/Write Cache (White Paper)
Supported RAID Type
Synology Hybrid RAID
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
Volume Expansion by Adding a HDD
Synology Hybrid RAID
Global Hot Spare Supported RAID Type
Synology Hybrid RAID
File Sharing Capacity
Maximum Local User Accounts
Maximum Local Groups
Maximum Shared Folder
Maximum Shared Folder Sync Tasks
Maximum Concurrent CIFS/AFP/FTP Connections
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
High Availability Manager
Syslog Events per Second
VMware vSphere 6 with VAAI
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Add-on Packages (960 FPS @ 1080p (1920×1080)
520 FPS @ 3M (2048x1536)
320 FPS @ 5M (2591x1944)
240 FPS @ 4K (3840x2160)
Total FPS (H.265)*
1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920×1080)
880 FPS @ 3M (2048x1536)
520 FPS @ 5M (2591x1944)
400 FPS @ 4K (3840x2160)
Total FPS (MJPEG)*
560 FPS @ 720p (1280x720)
270 FPS @ 1080p (1920×1080)
190 FPS @ 3M (2048x1536)
110 FPS @ 5M (2591x1944)
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.
Group 1 - Type 1 (See more)
Maximum Transcoding Channel Number
1 channel, 30 FPS @ 1080p(1920×1080), H.264 (AVC)/MPEG-4 Part 2 (XVID, DIVX5)/MPEG-2/VC-1
Virtual Machine Manager
Maximum Virtual DSM Number (Licenses required)
4 (including 1 Free License)
Environment & Packaging
Main Unit X 1
Welcome Note X 1
Accessory Pack X 1
AC Power Cord X 2 (for RP model)
Surveillance Device License Pack
16GB DDR4 ECC UDIMM
Expansion Unit: RX1217/RX1217RP X 1
Synology RKS1317 - Rail Kit Sliding
Synology Ethernet Adapter E10G15-F1
Synology Ethernet Adapter E10G17-F2
Synology M2D17 M.2 SSD adapter card
| Stock code || IBSY-R2818P-16G|
| Brand || Synology|
| Series || RackStation NAS|
| Model || RS2818RP+ (16GB ECC)|
| Type || 16-Bay 3U, 2x PSU (16GB Synology ECC RAM Kit) (no RAIL KIT)|
| ROHS || Y|
| Date added || 19/03/2019|
RS2818RP+ (16GB ECC) Spec Information
| Form Factor / Drive Height || 132.3 x 482 x 656.5 mm|
| Platter size || 3.5"|
| Platter (alternate) || 2.5"|
| RAM/Cache || 16GB ECC|
| Guarantee || 3yr|
| Processor || Intel Atom C3538 Quad Core 2.1 GHz|
| CPU Mark (cpubenchmark.net) || 2455|
| Redundant PSU ? || |
| Total Drives || 16|
| Total Drives (alternate) || 16|
| RAID || 0:1:5:6:|
| RAID Levels || Basic JBOD RAID 0 RAID 1 RAID 5 RAID 5+Spare RAID 6 RAID 10|
| Rack size || 3|
RS2818RP+ (16GB ECC) Spec Connections
|SATA||SATA 7-pin Discrete with Power||Internal||16|
|USB3||USB3 type A (host)||External||2|
RS2818RP+ (16GB ECC) Speed
| Speed/RPM || SATA to Gigabit Ethernet (1,000 Mbit/s)|
| Weight (kg) || 28kg|
| Weight (bare) || 17.4kg|
| Watts || 138.1W|
| External Length (mm) || 630cm|
| External Width (mm) || 300cm|
| External Height (mm) || 760cm|
| Colour || Black|
Synology RackStation NAS RS2818RP+ (64GB ECC) 16-Bay 2U, 2x PSU (64GB non-Synology ECC RAM Kit) (no RAIL KIT) |
Synology RackStation NAS RS2418+ (64GB ECC) 12-Bay 2U (64GB Synology ECC RAM Kit) (no RAIL KIT) |
Synology RackStation NAS RS2818RP+ (32GB ECC) 16-Bay 3U, 2x PSU (32GB Synology ECC RAM Kit) (no RAIL KIT) |
Synology RackStation NAS RS1619xs+ (64GB ECC) 4-Bay 1U, 2x PSU (64GB Synology ECC RAM Kit) (no RAIL KIT) |
Synology RackStation NAS RS2418RP+ (64GB ECC) 12-Bay 2U, 2x PSU (64GB Synology ECC RAM Kit) (no RAIL KIT) |
Why People Choose Us?
14 Day Return Guarantee
If you change your mind, you can return all or part of your order.
Next Day Delivery
Order before 4pm*, and in-stock products will be with you the next day. (Or Saturday. Or even Same Day).
Wherever you are in the world, we can get your order to you at high speed.
SpanStor Build & Test
Our free service helps you choose the right NAS and Drives, then makes sure it is built & ready to use as soon as you get it.
Professional Live Support
We are here to assist you - before, during and after your purchase, by phone, email or live chat.