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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 performance1, and can be optionally enhanced with SSD cache and 10/25Gb Ethernet
- Processor: AMD Ryzen V1500B
- System Memory: 4 GB DDR4 ECC UDIMM
- Maximum Memory: 32 GB (16 GB x 2)
- RJ-45 1GbE LAN Port: 4
- USB 3.2 Gen 1 Port*: 2
- Expansion Port: 1
- Drive Bay: 12
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 performance1, and can be optionally enhanced with SSD cache and 10/25Gb Ethernet2.
AMD Ryzen™ V1500B quad-core 2.2 GHz
2,200 MB/s seq. read and 1154 MB/s seq. write performance
4 GB ECC DDR4, up to 32 GB
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.
Built for reliability
Reduce the possibility of power disruptions on a single distribution channel or PDU adversely impacting data and service availability.
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 prevents data corruption, while the Btrfs file system brings higher reliability, snapshot technology, and simplified data protection.
License-free backup solutions
Back up your NAS to other devices
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 deduplication4, and restore data flexibly with multi-versioning.
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.
Consolidate backups to your NAS
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.
Host your own private cloud behind the safety of your NAS with 100% data ownership and no subscription fees.
Create documents, spreadsheets, and slides in a multi-user environment. Real-time collaboration and automatic saving make remote work sessions a breeze.
Chat and collaborate with colleagues using secure end-to-end encryption on with mobile, desktop, and browser clients.
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.
Instantly access your NAS files across multiple devices whenever you want, wherever you are.
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.
Secure data with comprehensive built-in security tools to protect your devices against evolving threats.
Complete surveillance solution for recording, monitoring, and management.
RackStation RS2421+ (Diskless)
|CPU||AMD Ryzen V1500B|
|Floating Point Unit|
|Hardware encryption engine||(AES-NI)|
|System Memory||4 GB DDR4 ECC UDIMM|
|Maximum Memory||32 GB (16 GB x 2)|
|Compatible drive types*||
16 x 3.5" or 2.5" SATA HDD/SSD (drives not included)
Only Synology SAT5200 2.5" or Synology SNV3400/3500 M.2 SSDs (sold reparately) can be used for SSD cache
It is strongly recommended that you only install drives listed on your device's compatibility list. Storage pool and volume creation processes may fail when using unverified drives. Synology is unable to provide technical support for devices using unsupported components.
|Drive Compatibility||3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
|RJ-45 1GbE LAN Port||4|
|USB 3.2 Gen 1 Port||2|
|Form Factor||Rackmount 2U|
|Scheduled power on/of|
|Dimensions (HxWxD)||88 mm x 482 mm x 552 mm|
|Weight (Net)||25.35 lbs|
|Rack installation support||4-post 19" rack|
|LAN ports||4 x 1GbE RJ-45|
|Wake on LAN/WAN|
|Operating temperature||0°C to 35°C (32°F to 95°F)|
|Relative Humidity||5% to 95% RH|
|Storage temperature||-20°C to 60°C (-5°F to 140°F)|
|Power Supply Unit||External, 120 W, AC 100 to 240 V|
|Fan||3 x (60 mm x 60 mm)|
|Sound Level||50.1 db(A)|
|Maximum operating altitude||5,000 m (16,400 ft)|
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 regional partners for professional advice.
GREAT NAS, EASY TO USE. SIMPLY NAS WAS QUICK AND GREAT ALSO!
Hi Minda, thank you for the complement. We appreciate you sharing your experience with other customers.
The Case for buying an Integrated NAS System from SimplyNAS
Buying a NAS doesn't have to be complicated or stressful. This may only occur at times when looking to buy a diskless NAS as the risk element of receiving a faulty NAS or drives are accentuated. Nothing wrong in buying a diskless NAS and adding your own drives, the savings made may offset the inconvenience of receiving faulty NAS/Drives and having to go deal with returns, or does it? The argument against buying a diskless and self-populating with drives is quite compelling.
- We ensure all drives are compatible with the relevant manufacturer, model provide conformity with the relevant compatibility guidelines.
- All our disk drives are sourced from manufacturer recommended distributors – we don't buy aftermarket drives or purchase on open grey markets.
- All our disk drives are sourced from manufacturer recommended distributors – we don't buy aftermarket drives or purchase on open grey markets.
- Our comprehensive batch rotation ensures customer avoid batch issues and thus promote reliability and longevity.
- Our methodology for configuration, setting RAID and in-depth burn testing process for disk drives and NAS servers is unsurpassed and the small premium paid for this service is worth its weight in gold.
- We are authorized partners for all the NAS servers we stock.
- We only sell and support NAS solutions, as a specialist our knowledge is unsurpassable.
- Our expertise within the technical arena for NAS servers, provides the glue for preventing our customers from making an incorrect buying decision, as we share our knowledge.
- Our extensive and professional burn-testing service ensure the optimization and deployment of both NAS and Disk Drives is done to provide peace of mind and total integration.
- Ready to use out of the box, no if's or buts.
Thinking of buying a NAS?
QNAP, Synology, QSAN and TerraMaster – Over fourteen Comprehensive years relationship culminating in our expertise of understanding all the NAS products, and skillfully combining performance, reliability and features to ensure our NAS experts are always at hand to help our customers optimize their storage needs.
At SimplyNAS we balance performance, reliability and compatibility to ensure customers get optimized NAS based disk solutions that perfectly match their Storage needs. All our pre-configured NAS systems are evenly balanced in the areas that really matter.
Call our NAS experts today at 407-960-4690
What is NASBIT?
NASBIT© is a Licensed trademark of SimplyNAS. The acronym stands for Network Attached Storage Burn in Testing. This term is used to describe the process of testing new Network Attached Storage (NAS) hardware and firmware for faults before putting it to use in a live environment. This is done by running 'Stress testing' software for a stipulated period of time often 24 to 48 hours, but longer if needed.
When we receive an order for a NAS system pre-installed with disk drives it's prepared and configured with RAID followed by burn testing to ensure the entire system undergoes a thorough examination thus ensuring the server passes all tests to the highest standards set by us. Should the system hardware or any associated components fail at any point of the testing cycle the system is pulled and returned back as faulty our relevant vendor partner, the process seems simple but setting it up is far from easy.
Hard Disk Drives
All Hard disk drives are pre-tested prior to integration; the smallest of faults be it tolerable within industry standards are classified by us as faults, the hard drive is rejected and eliminated from the process and again returned back to source as a D.O.A. (dead on arrival). We continue to select drives from different batches, so as to eliminate any bad batches that may have been produced during manufacturing.
One integrated the drives are put through a vigorous routine that includes stress testing, including temperature tests and a host of read, writes to ensure the drive platters are stressed to the nth degree.
First, when the new server is turned on, we boot off of the network, and proceed to run the memory test that takes its sweet time, almost 10-12 hours dependent on manufacturer and model.
The appropriate RAID level is set and the system awaits completion of RAID synchronization. Once completed the NAS server undergoes numerous re-boots and a deletion of original RAID and a final re-build of RAID level again.
Why is NAS Burn in Testing (NASBIT©) necessary?
If within the designated time span the NAS servers are still running and with zero faults, it is considered suitable for rolling out to our customers. If there is a failure of any kind the systems is replaced with a new one, including hard drives and the process starts again, until the NAS servers passes with ZERO faults.
You would normally expect that this level of testing would be completed by the hardware manufacturers and so these tests shouldn't show up any faults. In our experience of testing hundreds of machines we do find faults, and we do send systems back.
The reason it is so important to perform this level of testing on NAS servers is that the uptime demands are so high. The slightest faults will cause outages and downtime. Once a NAS server is deployed, never again will you have the opportunity to take it offline and perform such detailed testing. Even if it were to crash, there is always a demand that it be put back online as quickly as possible, not left offline whilst thorough diagnostics are completed.
Always remember this is hardware and failures can and will occur even after burn testing has been carried, that is a fact of life we cannot avoid, but we do try and eliminate some of the hassle factor with testing. Thank you for buying from us, we truly appreciate your custom.
NOT AVAILABLE ON DISKLESS UNITS - ONLY FOR SYSTEMS PRECONFIGURED WITH HARD DISK DRIVES
We try our best to get orders shipped as quickly as possible. However, due to the current situation with the Coronavirus, some manufacturers are experiencing stock constraints, shipping delays due to warehouse closures, delays in customs or other unforseen circumstances which can sometimes delay an order as stock levels can change hourly. We understand that your order may be urgent, so if you want to check if something is in stock before you place your order, please call us at 407-960-4690 during our normal business hours of 9-6PM EST. We also try to be transparent on the site with availability and shipping times. We do sometimes make mistakes and greatly appreciate your understanding if this occurs. Please allow some grace and patience as we work through the difficulties and challenges of communicating with our suppliers to keep up with supply changes.
So when can I expect a shipping notification for my order?
- Diskless orders that are in stock will ship same day if placed before 2pm.
- Diskless units that are not in stock we will ship directly from our suppliers warehouses. This could delay shipping by 1 - 3 business days.
- Configured systems are considered special order. This means that they are not already pre-built and ready to ship when you place an order. When you purchase a configured system from us it will not ship out for at least 2 - 3 business days due to the time it takes to pick, assemble, test, RAID and prepare your order for shipment. If we do not have one of the components on the build, that will further delay shipment as we have to wait for stock to come to us. You will receive updates for the order as it goes into testing.
When will my card be charged for an order?
We do not immediately charge your credit card when you submit an order, instead a temporary hold is placed on your card for the amount of the purchase. If everything is in stock, we will charge your card and process you order for building or shipment. Should there be a delay of some sort, we will notify you by email with the ETA and ask for approval to charge your card and process your order. Please be advised that we cannot allocate stock to you without prepayment. So, if you approve the ETA, we will immediately charge your card so that we can secure the stock from our suppliers. Once this charge occurs, any cancellation will incur a 3% fee.
Security and Payment Verification Requests
We take customer security very seriously as fraud and chargebacks are costly. In order to protect you and keep our costs to a minimum, we may ask you to verify your identity when you place an order. If your billing and shipping differ, or if the billing and shipping parties differ and we can't veryify you as a legitimate business, we will send a request by email with a link, asking you to upload documentation for us. We understand that this may make some people nervous, but you are sending your files to the same secured server as your payment and no one can access the files except for the staff who verify them. Your files are purged from the server within 120 days of payment date. As we cannot physically verify your identity when you place an order, this is the only way for us to accomplish this so we ask that you complete the verification as we won't be able to process your order until this step is completed.