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Synology RS2421+

AED 7,500.00 (Inc. VAT)

Brand: SYNOLOGY SKU: RS2421+ GTIN: 4711174723782

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Information about Synology RS2421+ from Vendor Site

Secure storage for your business

Synology RS2421+/RS2421RP+ are versatile 2U 12-bay storage servers designed to accommodate a diverse set of business environments. Scalable up to 24 drives, they are designed for cost-effective file management and sharing and include powerful backup capabilities designed for businesses with a growing data footprint. The unit delivers 2,200 MB/s 64K sequential read and 1154 MB/s sequential write performance , and can be optionally enhanced with SSD cache and 10/25Gb Ethernet .

Compute

AMD Ryzen V1500B quad-core 2.2 GHz

Throughput

2,200 MB/s seq. read and 1154 MB/s seq. write performance

Memory

4 GB ECC DDR4, up to 32 GB

Scalability

Up to 24 drive bays with RX1217(RP)

High performance storage for anything

Over 106K/59K random read/write IOPS and up to 2,200/1,154 MB/s sequential read/write throughput ensure ample performance for demanding workloads.

4K Random IOPS Sequential Throughput

* compared to predecessor RS2418(RP)+

Read

0 %

faster*

Write

0 %

faster*

Read

0 %

faster*

Write

0 %

faster*

Built for reliability

Redundant power

Reduce the possibility of power disruptions on a single distribution channel or PDU adversely impacting data and service availability.

Near-zero downtime

Pair two identical devices with Synology High Availability and enable automatic minute-level failover between both devices in the event one server fails.

Data integrity and protection

ECC memory brings higher system reliability, while the Btrfs file system helps prevent data corruption, supports snapshot technology, and simplifies data protection.

Customize to suit

Easily adapt the RS2421+/RS2421RP+ to any business environment by adding faster networking, local SSD cache, or storage capacity.

10/25GbE ready

Support for 10/25GbE NICs lets you boost maximum network throughput using Link Aggregation (bonding).
SSD cache

Boost read/write IOPS over HDD-only arrays by up to 16 times or more with NVMe or SATA SSD Cache
Storage expansion

Expand to 24 drive bays with a expansion unit

Customize to suit

Easily adapt the RS2421+/RS2421RP+ to any business environment by adding faster networking, local SSD cache, or storage capacity.

10/25GbE ready

Support for 10/25GbE NICs lets you boost maximum network throughput using Link Aggregation (bonding).

SSD cache

Boost read/write IOPS over HDD-only arrays by up to 16 times or more with NVMe or SATA SSD Cache

Storage expansion

Expand to 24 drive bays with a expansion unit

License-free backup solutions

Back up your NAS to other devices
Consolidate backups to your NAS

Hyper Backup

Back up files, iSCSI LUNs, installed applications, and system configurations to destinations including Synology C2 Storage, public cloud platforms, USB devices, file servers, local folders, or other Synology NAS.
Set and forget backup tasks with regular schedules, enhance security with fine-grained user permissions and encryption, keep backup sizes small with built-in deduplication , and restore data flexibly with multi-versioning.

Snapshot Replication

Snapshot Replication enables flexible point-in-time snapshots of shared folders and virtual machines with an RPO as low as 5 minutes and recovery within seconds.

Active Backup Suite

Securely back up Windows clients and servers, Microsoft 365 and Google Workspace accounts, file servers, and VMware and Hyper-V virtual machines with the Active Backup Suite.
Leverage built-in deduplication technology to reduce backup sizes and multi-versioning to allow flexible restoration.

Serving remote workforces

Keep your remote workforce connected with powerful out-of-the-box solutions for collaboration, file sharing, and communication.

Synology Drive

Host your own private cloud behind the safety of your NAS with 100% data ownership and no subscription fees.
Synology Office

Create documents, spreadsheets, and slides in a multi-user environment. Real-time collaboration and automatic saving make remote work sessions a breeze.
Synology Chat

Discuss and collaborate with colleagues using secure messaging designed for teams, with mobile, desktop, and browser clients.

Serving remote workforces

Keep your remote workforce connected with powerful out-of-the-box solutions for collaboration, file sharing, and communication.

Synology Drive

Host your own private cloud behind the safety of your NAS with 100% data ownership and no subscription fees.

Synology Office

Create documents, spreadsheets, and slides in a multi-user environment. Real-time collaboration and automatic saving make remote work sessions a breeze.

Synology Chat

Discuss and collaborate with colleagues using secure messaging designed for teams, with mobile, desktop, and browser clients.

Storage for virtualization

DSM streamlines provisioning for and management of virtual machines with full certification for VMware vSphere , Microsoft Hyper-V , Citrix XenServer , and OpenStack virtualization environments.
Synology Storage Console for VMware or Windows platforms lets you manage storage directly from your hypervisor. VMware VAAI integration and Windows ODX help offload storage operations and speed up data transfer.

Works best with Synology drives

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

Powered by Synology DiskStation Manager

The web-based DiskStation Manager (DSM) operating system supports a host of native productivity and management solutions.

Central Management System

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

Synology Drive

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

Collaboration Suite

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

Virtual Machine Manager

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

Security

Shield your Synology NAS from the most sophisticated threats with industry-leading security solutions.

Surveillance

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

We have you covered

RS2421+/RS2421RP+ is backed by Synology's three-year hardware warranty. An optional two-year extended warranty that extends coverage to five years is available in select regions.

RackStation RS2421+&ZeroWidthSpace;/&ZeroWidthSpace;RS2421RP+

1 Power button and indicator
2 Status Indicator
3 Alert Indicator
4 Alert Off Button
5 Drive tray

6 Drive status indicator
7 Rail Kit Release Tab
8 Power Port
9 PSU Indicators & Alert Off Buttons (RS2421RP+)
10 PSU fan

11 PSU on/off switch
12 Console port
13 1GbE RJ-45 port
14 USB 3.2 Ports
15 Expansion port

16 Reset button
17 PCIe expansion slot

RackStation RS2421+&ZeroWidthSpace;/&ZeroWidthSpace;RS2421RP+

1 Power button and indicator
2 Status Indicator
3 Alert Indicator
4 Alert Off Button
5 Drive tray

6 Drive status indicator
7 Rail Kit Release Tab
8 Power Port
9 PSU Indicators & Alert Off Buttons
10 PSU fan

11 PSU on/off switch
12 Console port
13 1GbE RJ-45 port
14 USB 3.2 Ports
15 Expansion port

16 Reset button
17 PCIe expansion slot

Notes:

Performance testing conducted by Synology with 10GbE NICs installed. Actual results may vary depending on system configuration, testing methods, and other environmental variables. Check the for specific details on the testing environment.
Network adapter cards, expansion units, other PCIe add-in cards, and storage drives are sold separately. Refer to the for compatible devices.
Redundant power only available in the RS2421RP+ model.
SSD cache can be enabled by using compatible 2.5' SSDs in drive bays or without occupying drive bays by installing Synology SNV3400/3500 M.2 NVMe SSDs using M2D20 or E10M20-T1 adapter cards, sold separately.
Users have reported total data size reductions of more than 50% when backing up multiple systems with deduplication technology enabled.

Hardware Specs
Software Specs

Hardware Specifications
CPU
CPU	CPU Model	AMD Ryzen V1500B
CPU Quantity	1
CPU Architecture	64-bit
CPU Frequency	4-core 2.2 GHz
Hardware Encryption Engine (AES-NI)
Memory
Memory	System Memory	4 GB DDR4 ECC UDIMM
Memory Module Pre-installed	4 GB (4 GB x 1)
Total Memory Slots	2
Maximum Memory Capacity	32 GB (16 GB x 2)
Notes	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. 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
Storage	Drive Bays	12
Maximum Drive Bays with Expansion Unit	24 (RX1217/RX1217RP x 1)
Compatible Drive Type*	3.5' SATA HDD 2.5' SATA HDD 2.5' SATA SSD
Hot Swappable Drive
Notes	Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the . The use of non-validated components may limit certain functionality and result in data loss and system instability. '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
External Ports	RJ-45 1GbE LAN Port	4 (with Link Aggregation / Failover support)
USB 3.2 Gen 1 Port*	2
Expansion 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	PCIe Expansion	1 x Gen3 x8 slot (x4 link)
File System
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
Appearance	Form Factor (RU)	2U
Size (Height x Width x Depth)	RS2421+ : 88 mm x 482 mm x 552 mm RS2421RP+ : 88 mm x 482 mm x 578 mm
Weight	RS2421+ : 11.5 kg RS2421RP+ : 11.9 kg
Rack Installation Support*	4-post 19' rack (Synology Rail Kit - )
Notes	The rail kit is sold separately
Others
Others	System Fan	60 mm x 60 mm x 3 pcs
Fan Speed Mode	Full-Speed Mode Cool Mode Quiet Mode
Easy Replacement System Fan
Power Recovery
Noise Level*	RS2421+ : 50.1 dB(A) RS2421RP+ : 54 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
Power Supply Unit / Adapter	RS2421+ : 500 W RS2421RP+ : 350 W
Redundant Power Supply	RS2421+ : - RS2421RP+ :
AC Input Power Voltage	100 V to 240 V AC
Power Frequency	50/60 Hz, Single Phase
Power Consumption*	RS2421+ : 79.56 W (Access) 34.89 W (HDD Hibernation) RS2421RP+ : 91.76 W (Access) 48.21 W (HDD Hibernation)
British Thermal Unit	RS2421+ : 271.65 BTU/hr (Access) 119.13 BTU/hr (HDD Hibernation) RS2421RP+ : 313.31 BTU/hr (Access) 164.61 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&ring;C; Humidity: 58.2-61.8%
Temperature
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
Certification	FCC CE BSMI EAC CCC KC UL VCCI RCM
Warranty
Warranty	3-year hardware warranty, extendable to 5-year coverage -
Notes	The warranty period starts from the purchase date as stated on your purchase receipt.
Environment
Environment	RoHS Compliant
Packaging Content
Packaging Content	RS2421+ : Main Unit X 1 Accessory Pack X 1 AC Power Cord X 1 Quick Installation Guide X 1 RS2421RP+ : Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Quick Installation Guide X 1
DDR4 ECC UDIMM: / / Expansion Units: / 3.5' SATA HDD: 2.5' SATA SSD: M.2 SSD & 10GbE Combo Adapter Card: M.2 SSD Adapter Card: 25GbE Network Interface Card: 10GbE Network Interface Card: / / Rail Kit Sliding: VisualStation: Surveillance Device License Pack
Notes	All memory modules will operate at the maximum frequency specified by the CPU manufacturer.

DSM Specifications
Maximum Single Volume Size*	108 TB
Maximum Internal Volume Number	64
SSD Read / Write Cache
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	Each internal volume (may consist of multiple drives) is expandable up to 108TB.
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.
Maximum Local User Accounts	2,048
Maximum Local Groups	256
Maximum Shared Folder	512
Maximum Shared Folder Sync Tasks	16
Maximum Hybrid Share Folders	10
Notes	For more details about the maximum number of Hybrid Share folders, check .
Synology High Availability
Syslog Events per Second	1,000
Virtualization
Virtualization	VMware vSphere with VAAI
Windows Server 2016
Windows Server 2019
Citrix Ready
OpenStack
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, &Rcy;&ucy;&scy;&scy;&kcy;&icy;&jcy;, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, &Ccaron;eský, ???????, ???, ???, ????, ????
Notes	For an updated list of supported browser versions, check the .
Add-on Packages
Antivirus by McAfee (Trial)
Antivirus by McAfee (Trial)
Maximum Users	1,500
Notes	The number of concurrent HTTP connections for Synology Chat was configured to the maximum. For tested models with expandable memory, the maximum amount of RAM was installed.
Document Viewer
Document Viewer
Download Station
Download Station
Download Station	Maximum Concurrent Download Tasks	80
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.
Free Email Accounts	5
Maximum Number of 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).
DLNA Compliance
Facial Recognition
Notes	Photo Station and Synology Moments are succeeded by Synology Photos in DSM 7.0. For a features comparison, check .
Maximum Snapshots per Shared Folder	1,024
Maximum of System Snapshots	65,536
Maximum IP cam	40 (including 2 Free License)
Total FPS (H.264)	1200 FPS @ 720p (1280x720) 1050 FPS @ 1080p (1920x1080) 600 FPS @ 3M (2048x1536) 440 FPS @ 5M (2591x1944) 320 FPS @ 4K (3840x2160)
Total FPS (H.265)	1200 FPS @ 720p (1280x720) 1200 FPS @ 1080p (1920x1080) 1120 FPS @ 3M (2048x1536) 600 FPS @ 5M (2591x1944) 480 FPS @ 4K (3840x2160)
Notes	Maximum IP cameras and FPS figures are tested with the device fully populated with drives and under a continuous recording setup. Actual system capabilities may differ depending on system configuration, drive performance, number of features enabled, and if additional workloads are present.
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 . 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.
Maximum 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
Recommended Virtual Machine Instances	8
Recommended Virtual DSM Number	8 (including 1 Free License)
Notes	The specifications vary depending on system configuration and memory size.
Maximum Connections	40

Notes:

Model specifications are subject to change without prior notice.
The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
If usage requirements exceed the specifications above, please contact our for professional advice.