Synology 4-Bay Rackmount NAS Redundant Review: Specs, Pros and Cons

What stands out

• Dual built-in power supplies provide redundant power for high uptime.
• Over 2,000 MB/s sequential read and 1,300 MB/s sequential write throughput.
• Easily scale from 4 to 8 drive bays with the RX426 Expansion Unit.
• License-free backup suite for physical systems, VMs, and cloud accounts.

Who it fits

Key specs explained for Synology RS826RP+

Dual built-in power supplies

This unit includes two internal power units working in tandem. If one fails or is unplugged, the other keeps the NAS running. This redundancy is critical for businesses that cannot afford downtime. It protects against sudden power loss better than single-supply models. You get higher uptime without needing an external UPS for every power event. This feature suits environments where continuous operation is mandatory for data integrity.

Over 2,000 MB/s sequential read

This speed rating indicates how fast the NAS can pull large files from storage. A throughput above 2,000 MB/s supports demanding office applications and large database queries. It prevents bottlenecks when multiple users access shared files simultaneously. This performance level is suitable for video editing teams or heavy backup operations. Compare this to standard consumer NAS drives which often lag significantly behind this throughput threshold for professional workloads.

1,300 MB/s sequential write

This metric measures how quickly data is saved to the drives. A write speed of 1,300 MB/s ensures that backups and file transfers complete efficiently. It reduces the time you wait for large datasets to be stored safely. This rate handles concurrent write tasks without significant slowdowns. It is ideal for organizations generating large volumes of data daily. When shopping, ensure your network infrastructure can handle this speed to fully utilize the storage capability.

4-Bay with Diskless

The chassis holds four hard drives but does not include them. You must purchase drives separately to store data. This gives you the freedom to choose drive types and capacities that fit your budget and needs. It is cost-effective if you already have spare drives. It also allows you to mix drive sizes for flexible storage expansion. Verify your total cost includes both the NAS unit and the necessary hard drives for a complete setup.

Design and Build Overview

The Synology RS826RP+ is a black, diskless unit designed for rackmount environments. According to the listing, its physical dimensions are 22.44 by 21.26 by 7.09 inches. This size profile indicates that the device is built to fit into standard server racks rather than sitting on a desk. The chassis color is black, which is typical for enterprise-grade hardware intended to blend into data center infrastructure. The unit includes four drive bays, allowing you to install storage drives yourself since it is sold diskless.

The build focuses on reliability through its internal components. The dual built-in power supplies are a key design feature. This redundancy ensures continuous operational protection against power source failures or accidental unplugging. For a rackmount NAS, this means you can place the unit in a server closet where power stability is critical. The solid performance specifications, including over 2,000 MB/s sequential read and 1,300 MB/s sequential write throughput, support the robust internal architecture required for demanding office applications.

You can also scale the physical storage capacity by connecting a Synology RX426 Expansion Unit. This on-demand capacity expansion allows you to grow from four to eight drive bays without replacing the main chassis. The design prioritizes high uptime and easy maintenance. The 3-year warranty further supports the durable construction intended for long-term use in business environments. The layout is straightforward, focusing on functionality and accessibility for IT administrators managing network storage.

Setup and everyday use

You begin setup by installing four hard drives into the bay slots. The unit ships diskless, so you must provide your own storage media. Once the drives are seated, you connect the power cables. The dual power supplies ensure that you can plug into separate circuits for maximum reliability. Network connectivity follows, linking the NAS to your local area network. The Synology operating system guides you through the initial configuration. You will create storage pools and volumes from your installed drives. The system then prepares the environment for your data. Daily operation relies on the specified throughput capabilities. The listing states sequential read speeds exceed 2,000 MB/s and write speeds reach 1,300 MB/s. These numbers indicate the device can handle demanding office applications without significant lag. You can run backups and manage virtual machines efficiently. The included license-free data protection suite allows you to safeguard physical systems and cloud accounts. You can protect VMware and Hyper-V virtual machines directly from the interface. Microsoft 365 and Google Workspace data are also covered. If your storage needs grow, you can connect an RX426 Expansion Unit. This allows you to scale from four bays to eight bays on demand. The redundant power feature means you do not need to worry about single points of failure. If one power supply fails, the other maintains operation. This setup supports continuous uptime for critical business data. You manage the system through the web interface, utilizing the robust backup tools provided. The design supports a rackmount environment, fitting standard server racks. This makes it suitable for dedicated server rooms or small data centers.

Before You Buy This NAS

You should verify that your server rack has the physical space for this 22.44 by 21.26 by 7.09-inch chassis before purchasing. Since the unit ships diskless, you must source compatible hard drives separately. Ensure your chosen drives fit the 4-bay configuration. You also need to confirm that your network infrastructure supports the required throughput for your specific office applications. If you anticipate needing more storage later, check that you have an RX426 Expansion Unit available for on-demand capacity scaling. This model suits users who prioritize high uptime through redundant power supplies. It fits well alongside other NAS drives for those needing rackmount solutions. Regular upkeep involves monitoring power supply health and ensuring proper ventilation within the rack. You should also plan for the Synology DSM software setup to manage backups for physical systems and virtual machines. This device is ideal for environments where continuous operation is critical.

Check before you buy

• Confirm your server rack fits the 22.44 by 21.26 by 7.09-inch dimensions.
• Purchase compatible hard drives since the unit ships diskless.
• Check network bandwidth for over 2,000 MB/s read requirements.
• Plan for RX426 Expansion Unit if you need more than 4 bays.

The product at a glance

1

Synology 4-Bay Rackmount NAS with Redundant Power

Best for: offices needing redundant power and high throughput

Drive Bays

4-Bay

Included Storage

Diskless

Weight

23 pounds

View on Amazon: Synology 4-Bay Rackmount NAS with Redundant Power Affiliate link

This 4-bay rackmount NAS delivers over 2,000 MB/s sequential read speeds and 1,300 MB/s write throughput. It features dual redundant power supplies for high uptime and scales from 4 to 8 bays via expansion units. The device includes a complete backup suite for physical systems, virtual machines, and cloud accounts. It measures 22.44x21.26x7.09 inches and comes with a 3-year warranty.

Pros

• Dual redundant power supplies ensure continuous operation
• Sequential read speeds exceed 2,000 MB/s
• Scales to 8 bays with expansion units
• Includes license-free data protection suite

Cons

• Sold diskless without included hard drives
• Large physical footprint at 22.44 inches wide
• Requires rackmount installation setup

Good fit if

• You need redundant power for critical data
• You require high sequential read throughput
• You plan to expand storage later

Skip if

• You prefer pre-loaded drive systems
• You need compact desktop storage
• You lack rackmount mounting space

Verdict: Synology RS826RP+ 4-Bay Rackmount NAS suits offices needing redundant power and high throughput. It fits users who can install rackmount hardware and plan to expand storage capacity.

Specifications side by side

Frequently asked questions

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