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Synology Diskstation RS1221RP+ 8-Bay Diskless NAS Quad Core 2.2GHz 4GB [RS1221RP+]

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Product SKU
SYN00178

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Synology Diskstation RS1221RP+ 8-Bay Diskless NAS Quad Core 2.2GHz 4GB [RS1221RP+]

  • AMD Ryzen V1500B quad-core 2.2 GHz
  • 2,300 MB/s seq. read 100K 4K random read IOPS
  • 4 GB ECC DDR4 Up to 32 GB
  • 30cm depth (38cm for RP model)

Compact and reliable

The RS1221+/RS1221RP+, at only 30 to 38 centimeters deep, is built for space-sensitive deployments. Boasting over 100K 4K random read IOPS and 2,315 MB/s sequential read1, the RS1221+/RS1221RP+ is equipped to handle heavy workloads in data-intensive environments. The RS1221RP+ additionally features an extra level of protection with redundant power supplies.

A compact design for space efficiency

The RS1221+ and its RX418 expansion units are designed to help you save space in compact deployments. At only 30 centimeters, half the length of a typical 2U unit, it fits perfectly snug onto 2-post or shallow rackmount enclosures. The RS1221RP+ with dual power supplies comes in at 38 cm, also fitting most shallow depth enclosures.
Fits into shallow rackmount enclosures
Easy-to-install on 2-post racks

Built for reliability

Redundant power
Reduce the chance that power disruptions on a single distribution channel or PDU causes data and service availability degradation.

Maximize service availability
When paired with another identical unit, Synology High Availability enables automatic minute-level failover between two clustered servers in the event of a server failure to minimize service downtime.Learn more

Data integrity and protection
ECC memory and the Btrfs file system bring higher reliability and snapshot capabilities to help prevent data corruption and simplify data protection.

High performance storage for anything

Up to 2,315/1,147 MB/s sequential read and write throughput and over 100K/54K random read/write IOPS ensures ample performance for demanding workloads.

With room to grow with you

Easily upgrade the RS1221+/RS1221RP+ to match your usage environment, whether it’s for performance, faster networking, or higher storage capacity.

Hyper Backup

A comprehensive backup and recovery solution for added data protection. Create backup destinations locally, on another Synology device, rsync servers, or cloud-based destinations, such as Google Drive, Dropbox, S3-compatible destinations, and Synology C2 Storage, a dedicated backup destination for Synology devices. Deduplication, integrity checks, and incremental transfer technology reduce bandwidth and storage use.

Snapshot Replication

Easily schedule flexible point-in-time backups of shared folders and LUNs with an RPO as low as 5 minutes and recovery in seconds. Set up replication and failover to other Synology storage systems for fast RTOs and minimal service disruption.

Protect your entire office with Active Backup

The Active Backup suite enables administrators to easily secure their entire IT infrastructure by backing up mission-critical data to their NAS, including Windows & Linux workstations and servers, file servers, VMware and Hyper-V virtual machines, and Microsoft 365 and Google Workspace accounts. Benefit from deduplication, multiversioning to quickly jump back in time, and additional data efficiency optimizations for reduced bandwidth and storage use.

Fully certified storage virtualization solutions

Synology iSCSI storage fully supports mainstream virtualization solutions to enhance work efficiency with an easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations. Windows Offloaded Data Transfer (ODX) speeds up data transfer. OpenStack Cinder support turns your Synology NAS into a block-based storage component. Additionally Synology Storage Console enables even more simplified storage provisioning and management options in VMware and Windows environments.

Works best with Synology drives

Engineered to handle intensive 24/7 workloads, Synology drives consistently deliver top-grade performance.

Synology High Availability

Seamless transition between clustered servers in the event of a server failure to minimize the impact on applications.

Virtual Machine Manager

Run various operating systems in isolated sandboxes. Seamlessly clone, store, and migrate virtual machines.

Synology Drive

Instantly access your NAS files across multiple devices whenever you want, wherever you are.

Central Management System

Conveniently manage your fleet of Synology NAS from a centralized console.

Surveillance

Protect your home or business with intelligent monitoring and video management tools.

Collaboration Suite

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

Extra protection with Extended Warranty Plus

Extend the standard 3-year hardware warranty of your RS1221+ with 2 more years of Synology-certified support and premium services that help you recover faster in the event of disaster.

RackStation RS1221+​/​RS1221RP+

1
Power indicator
2
Power button
3
Alert Off Button
4
Status indicator
5
Alert indicator
6
Drive status indicator
7
Drive tray
8
System fan
9
PCIe expansion slot
10
Reset button
11
USB 3.2 Gen 1 port
12
1GbE RJ-45 port
13
Expansion port
14
Console port
15
Power port
16
PSU Indicators & Alert Off Buttons

More Information
Model RS1221RP+
Condition New
Product Type NAS
Capacity 32GB
Features
 
CPU ModelAMD Ryzen V1500B
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 4-core 2.2 GHz
Hardware Encryption Engine (AES-NI)
Memory
System Memory 4 GB DDR4 ECC SODIMM
Memory Module Pre-installed 4 GB (4 GB x 1)
Total Memory Slots 2
Maximum Memory Capacity 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.
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion.
For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product.
Storage
Drive Bays 8
Maximum Drive Bays with Expansion Unit 12 (RX418 x 1)
Compatible Drive Type* (See all supported drives)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
Hot Swappable Drive*
Notes "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
USB 3.2 Gen 1 Port* 2
eSATA Port 1
Notes The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019.
PCIe
PCIe Expansion 1 x Gen3 x8 slot (x4 link)
File System
Internal Drives
Btrfs
EXT4
External Drives
Btrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT
Notes exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center.
Appearance
Form Factor (RU) 2U
Size (Height x Width x Depth)
RS1221+ :
88 mm x 482 mm x 306.6 mm
RS1221RP+ :
88 mm x 482 mm x 407.5 mm
Weight
RS1221+ :
6.9 kg
RS1221RP+ :
11.7 kg
Rack Installation Support*
RS1221+ :
4-post 19" rack (Synology Rail Kit - RKM114/RKS-02)
2-post 19" rack (direct mounting)
RS1221RP+ :
4-post 19" rack (Synology Rail Kit - RKS-02)
Notes The rail kit is sold separately
Others
System Fan 80 mm x 80 mm x 2 pcs
Fan Speed Mode
Full-Speed Mode
Cool Mode
Quiet Mode
Power Recovery
Noise Level*
RS1221+ :
25.2 dB(A)
RS1221RP+ :
40 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter
RS1221+ :
250 W
RS1221RP+ :
350 W
Redundant Power Supply
RS1221+ :
-
RS1221RP+ :
AC Input Power Voltage 100 V to 240 V AC
Power Frequency 50/60 Hz, Single Phase
Power Consumption
RS1221+ :
49.89 W (Access) 22.64 W (HDD Hibernation)
RS1221RP+ :
61.94 W (Access) 29.98 W (HDD Hibernation)
British Thermal Unit
RS1221+ :
170.23 BTU/hr (Access) 77.25 BTU/hr (HDD Hibernation)
RS1221RP+ :
211.35 BTU/hr (Access) 102.30 BTU/hr (HDD Hibernation)
Notes
Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s).
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 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: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Temperature
Operating Temperature 0°C to 35°C (32°F to 95°F)
Storage Temperature -20°C to 60°C (-5°F to 140°F)
Relative Humidity 5% to 95% RH
Certification
FCC
CE
BSMI
EAC
CCC
KC
UL
VCCI
RCM
Warranty
3-year hardware warranty, extendable to 5 years with EW202 or Extended Warranty Plus
Notes The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment
RoHS Compliant
Packaging Content
RS1221+ :
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 1
C13 to C14 power cord x 1
Quick Installation Guide X 1
RS1221RP+ :
Main Unit X 1
Accessory Pack X 1
AC Power Cord X 2
Quick Installation Guide X 1
Optional Accessories
RS1221+ :
DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G
Expansion Units: RX418
3.5" SATA HDD: HAT5300/HAT3300
2.5" SATA SSD: SAT5210
M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
M.2 SSD Adapter Card: M2D20/M2D18
25GbE Network Interface Card: E25G30-F2
10GbE Network Interface Card: E10G21-F2/E10G18-T2/E10G18-T1
Rail Kit Sliding: RKS-02
Rail Kit Mounted: RKM114*
Surveillance Device License Pack
RS1221RP+ :
DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G
Expansion Units: RX418
3.5" SATA HDD: HAT5300/HAT3300
2.5" SATA SSD: SAT5210
M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
M.2 SSD Adapter Card: M2D20/M2D18
25GbE Network Interface Card: E25G30-F2
10GbE Network Interface Card: E10G21-F2/E10G18-T2/E10G18-T1
Rail Kit Sliding: RKS-02
Surveillance Device License Pack
Notes
RS1221+ :
Certain items may not be available in your location. Please contact your local distributors for more information.
Upgrade to DSM 7.2-64551 or later before installing the M2D18.
All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
RS1221RP+ :
Upgrade to DSM 7.2-64551 or later before installing the M2D18.
All memory modules will operate at the maximum frequency specified by the CPU manufacturer.
Maximum Single Volume Size 108 TB
Maximum Internal Volume Number 64
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
Notes
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.
Each internal volume (may consist of multiple drives) is expandable up to 108TB.
File Services
File Protocol SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections 1,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) 2,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Notes
Regarding data concerning tests with RAM expansion, all memory slots are installed with the maximum capacity of supported RAM.
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
Maximum Local User Accounts 2,048
Maximum Local Groups 256
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 16
Hybrid Share
Maximum Hybrid Share Folders 10
Hyper Backup
Folder and Package Backup
Entire System Backup
Notes Full-system backup requires DSM 7.2 or later.
High Availability
Synology High Availability
Log Center
Syslog Events per Second 1,000
Virtualization
VMware ESXi 6.5 and VAAI
Windows Server 2016
Windows Server 2019
Windows Server 2022
Citrix Ready
OpenStack
General Specifications
Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers
Google Chrome
Firefox
Microsoft 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
Antivirus by McAfee (Trial)
Central Management System
Synology Chat
Suggested Maximum Users 1,500
Suggested Concurrent Users 150
Notes When applicable, systems are tested configured with maximum memory and set to allow the maximum number of connections.
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80
SAN Manager
Maximum iSCSI Target Number 128
Maximum LUN 256
LUN Clone/Snapshot, Windows ODX
Notes iSCSI Manager has been renamed to SAN Manager in DSM 7.0.
Synology MailPlus / MailPlus Server
Free Email Accounts 5 (Additional accounts require purchase of licenses)
Suggested Maximum Users 750
Suggested Concurrent Users 150
Maximum Server Performance 1,484,000 emails per day, approx. 45GB
Notes
Models with more than 4 bays were installed with two SSDs for SSD cache.
For tested models with expandable memory, the maximum amount of RAM was 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
Synology Photos
Facial Recognition
Object Recognition
Snapshot Replication
Maximum Snapshots per Shared Folder 1,024
Maximum of System Snapshots 65,536
Surveillance Station
Default Licenses 2 (Additional cameras require purchase of licenses)
Maximum IP Cameras and Total FPS (H.264)
720p: 40 channels, 1200 FPS
1080p: 40 channels, 1050 FPS
3M: 40 channels, 600 FPS
5M: 40 channels, 440 FPS
4K: 32 channels, 320 FPS
Maximum IP Cameras and Total FPS (H.265)
720p: 40 channels, 1200 FPS
1080p: 40 channels, 1200 FPS
3M: 40 channels, 1120 FPS
5M: 40 channels, 600 FPS
4K: 40 channels, 480 FPS
Notes
Performance figures are obtained from testing conducted with the device fully populated with drives 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.
Synology Drive
Recommended Number of Concurrent Sync Clients 550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Notes
Exceeding the recommended numbers above will not block application operations, but may result in longer response time.
Utilizing SSD cache can significantly improve performance.
For tested models with expandable memory, the maximum amount of RAM was installed.
Btrfs file system and non-encrypted shared folders were used during the aforementioned testing.
Synology Office
Suggested Maximum Users 4,500
Suggested Concurrent Users 1,800
Notes
Multiple files were opened for testing and each file was edited by 30 users simultaneously.
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
Video Station
Virtual Machine Manager
Recommended Virtual Machine Instances 8 (Learn more)
Recommended Virtual DSM Number (Licenses required) 8 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections 40

 

Warranty 3 Year Warranty

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Synology Diskstation RS1221RP+ 8-Bay Diskless NAS Quad Core 2.2GHz 4GB [RS1221RP+]
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