10 Best 4 Bay NAS in 2026

A 4 Bay NAS provides centralized storage for media, backups, and file sharing. It supports multiple users and offers RAID options for data protection. Choosing the right unit depends on your performance needs and budget constraints.

We evaluated ten leading 4 Bay NAS models based on processor power, RAM capacity, and network speed. Our comparison includes detailed reviews of key features like media transcoding and app ecosystems to guide your decision.

Each pick highlights specific strengths such as budget value or enterprise readiness. Prices and availability change frequently so verify current listings before purchasing. This guide ensures you find a reliable storage solution for your data.

Top 3 Picks for Best 4 Bay NAS

Top 10 Best 4 Bay NAS in 2026 Compared

This table compares the top ten 4 Bay NAS units across key technical specifications. Use it to quickly identify the model that fits your storage and performance requirements.

1. TERRAMASTER F4-425 – Best Value 4 Bay NAS

4.0Editor scoreCheck price on Amazon

TERRAMASTER F4-425

Intel Quad-Core CPU

4GB RAM

4K Transcoding

21dB Operation

The TERRAMASTER F4-425 is a solid choice for users seeking affordable 4 Bay NAS storage with reliable performance. It earns a 4.0 rating for balancing cost with essential features like 4K transcoding and silent operation suitable for home use.

Pros

• Affordable entry price
• Silent operation
• Push-Lock HDD trays
• 4K transcoding support
• CloudSync compatibility

Cons

• Limited RAM expansion
• No PCIe expansion

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Its Intel x86 quad-core processor handles multitasking well while the 2.5GbE port ensures fast file transfers. The TNAS Mobile app simplifies setup and management allowing remote access without a PC. Push-Lock design makes drive installation quick and tool-free.

While it lacks extensive RAM expansion options the 4GB default suffices for most media tasks. Users should note that advanced virtualization may be limited compared to higher-end models.

This NAS is ideal for home users or small offices needing centralized storage without breaking the bank. If you value quiet operation and easy setup the F4-425 delivers strong value.

Silent Operation for Quiet Spaces

Operating at 21dB it fits discreetly in bedrooms or living rooms without noise distractions.

Flexible Storage Management

TRAID and TRAID+ arrays offer more storage space than traditional RAID while ensuring data redundancy.

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2. UGREEN NAS DXP4800 GT – Powerful Creator NAS

4.6Editor scoreCheck price on Amazon

UGREEN NAS DXP4800 GT

AMD Ryzen R2514

8GB RAM

Dual 10GbE

U.2 NVMe Slots

The UGREEN NAS DXP4800 GT targets creators and tech enthusiasts with robust hardware and speed. Rated 4.6 it stands out for dual 10GbE ports and support for high-speed SSD expansion enabling efficient workflows.

Pros

• High-speed networking
• Expandable RAM
• Surveillance Center
• SD card slot
• UGOS Pro interface

Cons

• Premium pricing
• Manual Plex setup

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Powered by an AMD Ryzen Embedded processor it handles Docker apps and virtual machines smoothly. The built-in Surveillance Center allows local storage for security cameras without cloud subscriptions. An SD card slot simplifies photo imports from cameras.

Users should note ECC RAM requires a manual upgrade for error correction. Plex integration via Docker demands technical setup but offers flexibility for media libraries.

This model suits professionals needing rapid data transfer and local control. If you require high throughput for video editing or team collaboration the DXP4800 GT is a compelling choice.

Ultra-Fast Data Transfers

Dual 10GbE ports provide up to 2.5GB/s theoretical throughput for seamless large file handling.

Local Privacy Focus

Stores files locally with advanced encryption keeping data off third-party cloud servers.

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3. Synology DS425+ – Best Business 4 Bay NAS

4.6Editor scoreCheck price on Amazon

Synology DS425+

278 MB/s Speed

10+ User Access

Audit Logs

30 IP Cameras

The Synology DS425+ delivers professional-grade storage for businesses and media teams. With a 4.6 rating it excels in multi-user access and secure file sharing features tailored for productivity environments.

Pros

• High-speed throughput
• Granular access control
• Enterprise support
• Snapshot protection
• Surveillance capability

Cons

• Higher cost
• Limited expansion

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It supports concurrent access from over ten users with speeds reaching 278 MB/s. Centralized storage allows granular controls and audit logs for compliance. Surveillance System supports up to 30 IP cameras enhancing security options.

While robust it comes at a premium price point. Businesses benefit from a 3-year warranty and dedicated technical account management for critical operations.

This unit is perfect for offices needing reliable secure storage. If data integrity and team collaboration are priorities the DS425+ offers enterprise-level features.

Secure Collaboration Tools

Granular access controls and audit logs ensure sensitive company documents remain protected and traceable.

Robust Data Protection

Combines RAID redundancy with snapshots to prevent data loss from malware or accidental deletion.

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4. UGREEN NAS DXP4800 Plus – Overall Best 4 Bay NAS

4.6Editor scoreCheck price on Amazon

UGREEN NAS DXP4800 Plus

High-Performance Processor

10GbE Transfer

144TB Capacity

AI Photo Album

The UGREEN NAS DXP4800 Plus earns Editor's Choice for its balanced blend of speed and ease of use. Rated 4.6 it suits families and small teams needing centralized storage with advanced AI features.

Pros

• Fast USB ports
• Private cloud encryption
• User-friendly app
• Wide HDD compatibility
• 2-Year warranty

Cons

• Wired Ethernet only
• Manual Plex setup

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It enables backups under one second via 10GbE or USB ports. The AI-powered photo album organizes memories by faces and scenes saving time. Flexible permissions support secure collaboration across devices.

It lacks Wi-Fi support requiring wired connections. Plex is not pre-installed but runs via Docker for flexibility.

This NAS is recommended for those seeking high performance without complexity. If you need rapid transfers and smart media management the DXP4800 Plus leads the category.

Efficient Backup Solutions

Back up files instantly using 10GbE network or USB ports avoiding external drive hassles.

Secure Private Cloud

Advanced encryption ensures 100% data ownership without relying on third-party cloud providers.

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5. UGREEN NAS DH4300 Plus – Best for Beginners

4.2Editor scoreCheck price on Amazon

UGREEN NAS DH4300 Plus

Entry-Level NAS

2.5GbE Port

8GB RAM

128TB Capacity

The UGREEN NAS DH4300 Plus is tailored for beginners transitioning from cloud storage. Rated 4.2 it offers an intuitive entry point with smart photo features and secure local storage.

Pros

• Cost-effective
• NFC setup
• AI photo backup
• Private storage
• Magnetic dust cover

Cons

• No VM support
• Wired only

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NFC simplifies setup while AI organizes photos by people and scenes. It eliminates recurring cloud fees by providing permanent local storage. A magnetic dust cover aids in closing the unit effortlessly.

It does not support virtual machines limiting advanced use cases. Wired Ethernet is required as Wi-Fi is unsupported.

This NAS suits home users needing private storage without technical complexity. If you prioritize ease of use and cost savings the DH4300 Plus is ideal.

Simplified Initial Setup

Connect via NFC to start sharing files quickly without extensive configuration steps.

Smart Photo Management

AI-powered albums remove duplicates and organize memories to keep your library tidy.

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6. Synology DS925+ – Best for Virtualization

4.2Editor scoreCheck price on Amazon

Synology DS925+

565 MB/s Write

Dual 2.5GbE

Virtualization Ready

Surveillance Solution

The Synology DS925+ offers versatile storage with strong virtualization capabilities. Rated 4.2 it appeals to users needing stable data transfers and built-in solutions for file and photo management.

Pros

• High throughput
• Dual ports for redundancy
• Built-in apps
• 3-year warranty
• Official drive list

Cons

• Limited upgrade options
• Higher price

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Dual 2.5GbE ports enhance redundancy and speed. It supports virtualization allowing flexible hosting of services. The official compatibility list ensures reliable drive operation.

It lacks extensive hardware expansion but provides enterprise features in a compact design. The 3-year warranty adds peace of mind for critical data.

Ideal for small offices needing reliability the DS925+ delivers efficient performance. If you value stable transfers and native app support this model is a solid option.

Redundant Networking

Dual 2.5GbE ports ensure fast transfers and network reliability for continuous operations.

Integrated Solutions

Built-in file photo and surveillance tools simplify management without extra software.

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7. Yxk Zero1 Pro – Best for Custom OS Support

4.4Editor scoreCheck price on Amazon

Yxk Zero1 Pro

Intel N100 CPU

8GB RAM

144TB Raw

3-Party OS

The Yxk Zero1 Pro stands out for supporting third-party operating systems alongside its native app. Rated 4.4 it is excellent for users wanting flexibility in software environments while maintaining ease of setup.

Pros

• Beginner-friendly setup
• High raw capacity
• HDMI output
• Third-party OS
• Aluminum cooling

Cons

• Requires compatible drives
• Basic OS features

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Its Intel N100 processor supports Docker and custom OS like TrueNAS. HDMI output allows direct media playback. The aluminum housing with dual-fan cooling ensures stable operation under load.

Drive compatibility must be checked before purchase. While flexible it may require more technical knowledge for advanced configurations.

This NAS is perfect for hobbyists and professionals needing customization. If you prefer control over the OS the Zero1 Pro offers unmatched versatility.

Third-Party OS Flexibility

Install systems like TrueNAS or Unraid to tailor the environment to specific needs.

Efficient Thermal Management

Dual fans and aluminum enclosure maintain low temperatures for continuous heavy workloads.

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8. Asustor Drivestor 4 Gen 2 – Best Value 4 Bay NAS

4.0Editor scoreCheck price on Amazon

Asustor Drivestor 4 Gen 2

Realtek 1.7GHz

1GB RAM

2.5GbE Port

Btrfs Snapshots

The Asustor Drivestor 4 Gen 2 offers essential features at an entry-level price. Rated 4.0 it is ideal for budget-conscious users needing secure storage and remote access.

Pros

• Low entry cost
• Fast network
• Btrfs support
• WORM technology
• Remote access

Cons

• Lower RAM
• Basic media support

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A 2.5GbE port improves transfer speeds over standard gigabit. Btrfs snapshots and WORM technology protect against ransomware. Remote access features enable private cloud capabilities without monthly fees.

RAM is limited to 1GB which may hinder multitasking. Advanced media transcoding is not as robust as higher-end units.

This NAS suits home users needing reliable backups. If cost and security are priorities the Drivestor 4 Gen 2 provides excellent value.

Data Protection Features

Snapshots and WORM technology safeguard critical files from malicious attacks or errors.

Personal Cloud Access

Create a secure private cloud for file sharing without relying on public services.

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9. Synology DS423 – Best for Media Protection

4.4Editor scoreCheck price on Amazon

Synology DS423

Private Cloud

Ransomware-Resistant

Photo Vault

Up to 30 Cameras

The Synology DS423 focuses on protecting media and documents with robust security tools. Rated 4.4 it is suited for families needing privacy and business users requiring reliable backup solutions.

Pros

• Immutable backups
• Secure sharing
• Surveillance support
• File server features
• 2-year warranty

Cons

• Camera licenses separate
• Moderate speed

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Immutable snapshots prevent ransomware attacks effectively. File sharing replaces expensive services like Dropbox. The surveillance system supports up to 30 IP cameras for comprehensive monitoring.

Camera licenses are sold separately which adds to the cost. Speed is adequate but not top-tier for heavy workloads.

This model is recommended for secure private storage. If data safety and multi-device sync are key the DS423 delivers peace of mind.

Ransomware Defense

Immutable snapshots ensure you can restore files even after malware attempts to encrypt data.

Versatile Surveillance

Archive and analyze security footage locally without recurring cloud subscription fees.

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10. UGREEN NAS DXP4800 Pro – Best Premium 4 Bay NAS

4.4Editor scoreCheck price on Amazon

UGREEN NAS DXP4800 Pro

Intel Core i3-1315U

8GB DDR5 RAM

10GbE+2.5GbE

Dual M.2 Slots

The UGREEN NAS DXP4800 Pro targets IT professionals with high-end specs. Rated 4.4 it offers desktop-level performance for virtual machines and local AI processing ensuring privacy for demanding workflows.

Pros

• Pro-performance engine
• DDR5 RAM
• Local AI processing
• High capacity
• Enterprise security

Cons

• High price point
• Advanced setup

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It uses a Core i3-1315U processor with DDR5 RAM for speed. Dual network ports provide fast throughput for data centers. The Data Vault encrypts sensitive files adding a layer of security.

Advanced features require technical knowledge to fully utilize. The premium price reflects its capability for professional environments.

This NAS is ideal for developers needing a private workstation. If speed and enterprise-grade features are necessary the DXP4800 Pro stands out.

Desktop-Level Performance

Intel Core i3-1315U handles virtual machines and development tools smoothly as a private workstation.

Local Privacy AI

All AI photo processing happens on-device ensuring your data never leaves your network.

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Buying Guide – How to Choose the Best 4 Bay NAS

Selecting a 4 Bay NAS requires evaluating processor power, storage capacity, and network speed. This guide explains key factors to consider before purchasing.

Processor Performance

A strong processor ensures smooth multitasking media transcoding and virtual machine hosting. Look for quad-core CPUs or better to handle multiple users effectively.

Prioritize processors with higher thread counts for complex workflows.

RAM Capacity

RAM affects how many apps and users the NAS can support simultaneously. 4GB is adequate for basic storage while 8GB or more supports advanced tasks.

Check if the unit supports RAM upgrades for future flexibility.

Network Speed

Network ports determine file transfer rates. 2.5GbE is standard but 10GbE offers faster speeds for large media files.

Ensure your router and network equipment match the port speed.

Storage Capacity

4-bay NAS units typically support up to 144TB or more with large drives. Calculate your needs for photos videos and backups.

Remember that drives are usually sold separately from the NAS.

RAID Support

RAID configurations protect data by spreading files across drives. Options like RAID 1 or 5 offer redundancy if a drive fails.

Choose a model with flexible RAID options for your safety requirements.

Software Features

Modern NAS units offer photo management surveillance and cloud apps. Evaluate if the OS supports your workflow needs.

User-friendly interfaces simplify setup for non-technical users.

Expansion Options

Some models include slots for M.2 SSDs or PCIe expansion. These allow faster caching or adding more ports.

Expandability extends the useful life of your NAS.

Warranty and Support

Check the warranty length and availability of customer support. Enterprise units often come with longer coverage.

Reliable support is critical for business environments.

How to Use and Care for Your 4 Bay NAS

Begin by installing compatible hard drives and connecting the NAS to your router. Use the provided app to initialize the unit and create user accounts.

Configure RAID settings to protect your data and set up automatic backups for important files. Install additional apps like surveillance or media servers as needed.

Keep the unit in a well-ventilated area to prevent overheating. Regularly update firmware to ensure security and optimal performance.

Frequently Asked Questions

Final Thoughts on Choosing the Best 4 Bay NAS

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