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10 Best 4 Bay NAS in 2026

Compare the top 4 Bay NAS devices for home and business. This guide reviews performance, storage, and features to help you choose the best network attached

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In this guide
  1. 01Top 3 picks
  2. 02Compare all 10
  3. 03In-depth reviews
  4. 04Buying guide
  5. 05Use and care
  6. 06Common questions
  7. 07Final verdict

Finding the right network attached storage solution is crucial for managing your digital life efficiently. A 4 Bay NAS offers the perfect balance of capacity and flexibility for families and small businesses needing reliable data management without complex setups.

We evaluated ten leading models based on processor power, network speeds, and software ecosystems. Our comparison highlights devices that excel in media streaming, backup automation, and security features to ensure your files remain safe and accessible.

Each pick includes detailed specs and real-world usage scenarios to guide your decision. Note that product availability and pricing can fluctuate frequently, so verify current details before finalizing your purchase to get the best value today.

Top 3 Picks for Best 4 Bay NAS

Best Budget

UGREEN NAS DXP4800 Pro
UGREEN NAS DXP4800 Pro

4.4Editor score

Intel Core i3 Processor
96GB RAM Support
Enterprise Grade Security

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Editor's Choice

UGREEN NAS DXP4800 GT
UGREEN NAS DXP4800 GT

4.6Editor score

AMD Ryzen Embedded Processor
Dual 10GbE Networking
UGOS Pro Ecosystem

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Best Budget

Asustor Drivestor 4 Gen 2
Asustor Drivestor 4 Gen 2

4.0Editor score

Affordable Entry Level
2.5GbE Port
Btrfs Snapshots

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Top 10 Best 4 Bay NAS in 2026 Compared

This side-by-side comparison examines the technical specifications and unique capabilities of each selected device. We break down processor types, memory options, and connectivity to help you identify the model that fits your specific workflow needs.

ProductsSpecificationsEditor scorePrice
1TERRAMASTER F4-425

Best Budget

TERRAMASTER F4-425
Intel x86 Quad Core
4GB RAM
2.5GbE Port
TRAID Support
4.0Editor score

Check price

2UGREEN NAS DXP4800 GT

Editor's Choice

UGREEN NAS DXP4800 GT
AMD Ryzen R2514
8GB DDR4 RAM
Dual 10GbE
144TB Capacity
4.6Editor score

Check price

3Synology DS425+

Best Premium

Synology DS425+
Private Cloud Media
30 IP Cameras
Granular Access
3 Year Warranty
4.6Editor score

Check price

4UGREEN DXP4800 Plus

UGREEN DXP4800 Plus
Docker Support
AI Photo Album
Remote Access
2 Year Warranty
4.6Editor score

Check price

5UGREEN NAS DH4300 Plus

UGREEN NAS DH4300 Plus
Beginner Friendly
2.5GbE Port
No Virtual Machines
ETSI Certified
4.2Editor score

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6Synology DS925+

Synology DS925+
565 MB/s Speed
Dual 2.5GbE
Virtualization Ready
3 Year Warranty
4.2Editor score

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7Yxk Zero1 Pro

Yxk Zero1 Pro
Intel N100
8GB DDR4 RAM
4K HDMI Out
Aluminum Housing
4.4Editor score

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8Asustor Drivestor 4 Gen 2

Asustor Drivestor 4 Gen 2
Realtek 1.7GHz
1GB DDR4 RAM
2.5GbE Port
Btrfs Snapshots
4.0Editor score

Check price

9Synology DS423

Synology DS423
Ransomware Resistant
30 IP Cameras
File Server
2 Year Warranty
4.4Editor score

Check price

10UGREEN NAS DXP4800 Pro

UGREEN NAS DXP4800 Pro
Intel i3-1315U
8GB DDR5 RAM
10GbE Port
144TB Support
4.4Editor score

Check price

1. UGREEN NAS DXP4800 GT – Best Performance for Creators

UGREEN NAS DXP4800 GT 4-Bay for Creators, Tech Enthusiasts and Office Teams4.6Editor scoreCheck price on Amazon
UGREEN NAS DXP4800 GT
AMD Ryzen R2514
8GB DDR4 RAM
Dual 10GbE
144TB Total

The UGREEN NAS DXP4800 GT stands out as a powerful solution for content creators and tech enthusiasts needing robust performance. With its AMD Ryzen Embedded processor and dual 10GbE ports, it handles heavy multitasking and large file transfers with ease.

Pros

  • Fast network transfers
  • Expandable to 64GB
  • Built-in Surveillance Center
  • SD card slot included
  • Strong encryption

Cons

  • Non-ECC RAM standard
  • Plex requires Docker setup

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Its UOS Pro ecosystem simplifies management while supporting Docker and virtual machines for advanced workflows. The inclusion of an SD card slot and USB-C ports makes importing media from cameras seamless without extra hardware.

While the pre-installed RAM is non-ECC, the system supports upgrades for better error correction. Users should note that running Plex requires manual Docker configuration rather than a native app.

This device is ideal for small offices or power users who need local privacy and professional-grade security. Its balance of speed and expandability makes it a top choice for demanding storage needs.

High-Speed Networking

Dual 10GbE ports enable theoretical throughput of 2.5GB/s for smooth 4K and 8K workflows.

Local Privacy

TLS and SSL encryption plus local account mode ensure your data stays secure without cloud reliance.

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2. UGREEN NAS DXP4800 Pro – Best for Developers

UGREEN NAS DXP4800 Pro 4-Bay for IT Professionals, Developers & Power Users4.4Editor scoreCheck price on Amazon
UGREEN NAS DXP4800 Pro
Intel i3-1315U
8GB DDR5 RAM
10GbE + 2.5GbE
96GB RAM Max

Targeted at IT professionals and developers, the UGREEN NAS DXP4800 Pro delivers enterprise-grade performance with its Intel Core i3 processor. It supports up to 96GB of RAM and offers significant flexibility for virtualization tasks and heavy workloads.

Pros

  • Intel Core i3 Processor
  • DDR5 RAM Support
  • 13th Gen Graphics
  • 2048 User Accounts
  • Privacy Certified

Cons

  • Higher price point
  • Requires separate drives

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The local AI-powered Photo Album manages massive libraries efficiently while keeping processing on-device for privacy. Its granular user permissions and data vault features provide advanced security for sensitive business files.

Although it comes at a premium cost, the hardware specifications justify the investment for serious users. The dual network ports allow for blazing-fast transfers that eliminate bottlenecks during large data migrations.

This model is perfect for teams needing a versatile private workstation that doubles as an IT hub. It ensures smooth multitasking for video editors and developers working on complex projects simultaneously.

Pro Performance

The 13th Gen Intel CPU and DDR5 RAM support enable smooth operation of virtual machines and containers.

Enterprise Security

Certified by TÜV SÜD and TRUSTe, it offers strong data protection standards for business environments.

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3. Asustor Drivestor 4 Gen 2 – Best Budget Option

Asustor Drivestor 4 Gen 2 AS1204T, 4 Bay NAS, Quad-Core 1.7GHz CPU, 2.5GbE Port, 1GB DDR4, 3 USB 3.0, Best Budget Home Cloud, Small Office Backup, 4K Media Center, Network Attached Storage (Diskless)4.0Editor scoreCheck price on Amazon
Asustor Drivestor 4 Gen 2
Realtek 1.7GHz
1GB DDR4 RAM
2.5GbE Port
RAID Protection

The Asustor Drivestor 4 Gen 2 offers an accessible entry point into network attached storage without sacrificing essential features. Its Realtek processor provides efficient multitasking for daily storage needs and automated backups.

Pros

  • Low entry price
  • 2.5GbE Network
  • Btrfs Snapshots
  • 4K Media Playback
  • WORM Technology

Cons

  • Limited RAM
  • Single network port

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Btrfs snapshots protect your data against ransomware and accidental deletion by allowing instant restoration points. The 2.5GbE port significantly speeds up file transfers compared to standard Gigabit connections.

While the RAM is limited to 1GB, it remains sufficient for basic file sharing and media streaming. The WORM technology ensures critical documents remain immutable and safe from tampering or overwriting.

This model is suitable for small offices or families looking for a reliable private cloud on a budget. It handles 4K streaming smoothly and offers robust data protection for the price.

Data Protection

Btrfs snapshots and WORM technology provide enterprise-grade security against ransomware and data loss.

Media Streaming

Smooth 4K playback support ensures compatibility with smart TVs and mobile devices for entertainment.

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4. UGREEN NAS DH4300 Plus – Best for Beginners

UGREEN NAS DH4300 Plus 4-Bay for Beginners, Home Users & Remote Workers4.2Editor scoreCheck price on Amazon
UGREEN NAS DH4300 Plus
2.5GbE Network
8GB LPDDR4X
No Virtual Machines
ETSI Certified

Designed for beginners transitioning from cloud storage, the UGREEN NAS DH4300 Plus provides an intuitive interface and simple setup via NFC. It is ideal for home users needing automatic photo backups and secure remote access.

Pros

  • Easy Setup Process
  • Docker Support
  • Smart Photo Backup
  • Private Cloud
  • Certified Encryption

Cons

  • No Wi-Fi Support
  • No Virtual Machines

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The smart photo album organizes memories using AI while removing duplicates to save space. Its encryption is ETSI certified, ensuring your data remains private and secure without third-party cloud dependencies.

While it lacks virtual machine support, Docker capabilities allow for flexible app usage. The device supports wired Ethernet only, which ensures stable connections for data transfer but limits wireless options.

This NAS is a cost-effective solution for families wanting full control over their digital lives. It simplifies media sharing and backups without requiring technical expertise or recurring fees.

Simple Setup

NFC connectivity and beginner-friendly manuals make initial configuration quick for non-technical users.

Data Security

Advanced encryption standards prevent unauthorized access and protect your files from external threats.

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5. TERRAMASTER F4-425 – Best Home Multimedia Hub

TERRAMASTER F4-425 4-Bay NAS Intel x86 Quad-Core CPU 4GB RAM (Diskless)4.0Editor scoreCheck price on Amazon
TERRAMASTER F4-425
Intel x86 Quad-Core
4GB RAM
2.5GbE Port
21dB Operation

The TERRAMASTER F4-425 excels as a home multimedia hub with its hardware-level 4K decoding for smooth video playback. It operates at a whisper-quiet 21dB, making it suitable for living rooms and bedrooms without noise distractions.

Pros

  • 4K Transcoding
  • Ultra-Quiet Design
  • TNAS Mobile App
  • TRAID Arrays
  • Tool-Free Drives

Cons

  • Limited User Accounts
  • Basic Software

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Its tool-free HDD trays allow for quick drive installation in just 10 seconds, simplifying hardware upgrades. The TNAS Mobile app enables full control and photo backups without needing a PC for setup.

TRAID+ arrays provide flexible storage with 30% more space than traditional RAID while maintaining data redundancy. While the software is less complex than competitors, it covers essential media server and sync needs well.

This device is perfect for users prioritizing quiet operation and simple media streaming. It offers solid performance for home use at a competitive price point with reliable hardware features.

Silent Operation

Running at just 21dB ensures the device remains unobtrusive in quiet home environments.

Easy Maintenance

Tool-free drive trays let you install or swap hard drives quickly without extra hardware tools.

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6. Synology DS423 – Best for Surveillance

Synology DS423 Family & Business Backup - Secure File Sharing, Photo Vault & Video Surveillance (4-Bay Diskless NAS)4.4Editor scoreCheck price on Amazon
Synology DS423
30 IP Cameras
Multi-destination Backup
Immutable Snapshots
File Server

The Synology DS423 serves as a secure private cloud with versatile surveillance tools supporting up to 30 IP cameras. It protects home or business with intuitive monitoring and analysis tools for reliable security coverage.

Pros

  • Versatile Surveillance
  • Snapshot Technology
  • Secure Sharing
  • Replace Dropbox
  • 2 Year Warranty

Cons

  • Camera License Cost
  • Lower RAM

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Immutable snapshots help defend against malware and ransomware by preventing unauthorized changes to data. File sharing replaces expensive cloud subscriptions with local team folders and precise permission controls.

While camera licenses are purchased separately, the integrated management system keeps footage safe locally. The device balances robust security features with ease of use for family and small business needs.

This model is ideal for those needing reliable backups and surveillance in one package. Its reputation for support and updates ensures long-term reliability for sensitive family or business data.

Ransomware Protection

Versioned files and immutable snapshots secure your data against malware and accidental deletion.

Local Sharing

Granular permissions and file server features enable secure collaboration without cloud fees.

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7. UGREEN DXP4800 Plus – Best for Small Teams

UGREEN DXP4800 Plus 4-Bay NAS for Families, Creators & Small Teams4.6Editor scoreCheck price on Amazon
UGREEN DXP4800 Plus
10GbE Network
10Gbps USB Ports
AI Photo Album
2 Year Warranty

The UGREEN DXP4800 Plus is engineered for small offices and creators needing high-performance storage collaboration. It supports seamless file sharing across Windows, macOS, and Linux with fast 10GbE networking speeds.

Pros

  • Super-Fast Transfers
  • Centralized Storage
  • Wide Compatibility
  • Simple Setup
  • Docker Support

Cons

  • No Wi-Fi
  • Drives Not Included

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AI-powered photo albums organize media automatically while flexible permission management protects privacy during team access. Its wide compatibility with major drive brands ensures you can choose the storage hardware that fits your budget.

Although it requires a wired connection, the setup process remains simple for beginners. Docker support allows for extended functionality and customized workflows tailored to specific business needs.

This device is a strong choice for teams needing centralized backups and quick data access. It balances performance with user-friendly features to simplify daily file management tasks.

Collaboration Tools

Remote access and flexible permissions enable teams to share files securely from any device.

AI Organization

Facial recognition and duplicate removal help keep massive photo libraries clean and searchable.

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8. Synology DS925+ – Best for Enterprise Support

Synology 4-Bay DiskStation DS925+ (Diskless)4.2Editor scoreCheck price on Amazon
Synology DS925+
565 MB/s Speed
Dual 2.5GbE
Built-in File Manager
3 Year Warranty

The Synology DS925+ offers enterprise-grade stability with dual 2.5GbE ports for redundant network connections. It delivers consistent sequential read/write throughput that ensures reliable transfers for business-critical data.

Pros

  • Stable Transfer Speed
  • Dual Ports
  • Surveillance Solution
  • Virtualization
  • Expert Support

Cons

  • Higher Price
  • Complex Interface

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Built-in file management and data protection tools simplify maintenance while virtualization support expands capabilities. Its 3-year limited hardware warranty provides peace of mind for long-term production environments.

While the interface may seem complex initially, it offers extensive customization for growing teams. The surveillance solution supports up to 30 cameras providing a comprehensive security system within the NAS.

This model is ideal for small businesses needing dependable infrastructure and technical support. Its robust feature set ensures data safety and productivity in demanding office settings.

Redundant Connectivity

Dual network ports provide failover protection and increased transfer speeds for critical tasks.

Warranty Coverage

A dedicated 3-year warranty and technical account management ensure long-term support and reliability.

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9. Synology DS425+ – Best for Team Productivity

Synology DS425+ Private Cloud Media Server - Stream, Back Up & Share Files (4-Bay Diskless NAS)4.6Editor scoreCheck price on Amazon
Synology DS425+
278 MB/s Speed
10+ Users
30 IP Cameras
3 Year Warranty

Designed for team productivity, the Synology DS425+ supports concurrent access from over 10 users with stable transfer speeds. It acts as a centralized repository for documents and media with granular access controls.

Pros

  • Centralized Repository
  • Team Media Sharing
  • Audit Logs
  • Data Protection
  • Private Cloud

Cons

  • License for Cameras
  • No SSD Cache

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Audit logs and multi-layered data protection ensure compliance and prevent data loss from various causes. Its ability to serve as a private cloud allows teams to streamline file sharing securely.

While camera licenses are separate, the surveillance system offers motion detection and secure remote access. The 3-year warranty adds value for business-critical production environments requiring reliable uptime.

This device suits small offices needing organized collaboration and robust security features. Its balance of media serving and file management makes it a versatile tool for modern workplaces.

Team Workflow

Granular permissions and audit logs help teams manage sensitive files and track access history.

Media Center

High-speed streaming and sharing capabilities turn the NAS into a central media hub for the office.

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10. Yxk Zero1 Pro – Best for Home Theater

Yxk Zero1 Pro 4-Bay NAS, Intel N100, 8GB RAM, 2 x 2.5GbE, 4K HDMI, Diskless4.4Editor scoreCheck price on Amazon
Yxk Zero1 Pro
Intel N100
8GB DDR4 RAM
4K HDMI Out
Aluminum Housing

The Yxk Zero1 Pro offers a beginner-friendly home NAS setup that connects easily to existing networks for shared storage. Its Intel N100 processor balances performance with efficiency for typical household media and file tasks.

Pros

  • Beginner-Friendly Setup
  • 4K HDMI Output
  • Link Aggregation
  • Third-Party OS
  • AI Photo Albums

Cons

  • Diskless Purchase
  • Cooling Fan Noise

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Direct 4K HDMI output allows the device to serve as a media player connected to a TV. This feature simplifies home theater setups by reducing the need for extra streaming boxes.

Link aggregation on dual network ports ensures stable high-speed access for multiple household members simultaneously. The aluminum housing provides effective cooling while maintaining a compact footprint for living rooms.

This model is ideal for users who want a private cloud and entertainment hub in one device. It supports third-party OS installation for advanced users seeking full software flexibility and control.

Media Integration

Connecting directly to a TV via HDMI makes the NAS a central device for home entertainment.

System Flexibility

Support for various operating systems allows users to customize the software to their specific needs.

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Buying Guide – How to Choose the Best 4 Bay NAS

Selecting the right 4 Bay NAS involves evaluating processor power, memory, and connectivity to match your specific usage needs.

Processor and Memory

The processor and RAM determine how smoothly your NAS handles tasks like media transcoding and virtualization. Look for modern CPUs like Intel or AMD to ensure future-proofing and adequate power for multitasking.

For advanced users running containers or virtual machines, aim for models with at least 8GB of RAM.

Network Connectivity

Network speed is critical for transferring large files quickly. Traditional Gigabit ports may suffice for basic file storage but look for 2.5GbE or 10GbE ports for media streaming and editing.

Dual ports can also provide redundancy or link aggregation to increase throughput if your router supports it.

Expandability and Bays

While a 4 Bay model supports four drives, consider if it has M.2 slots for SSD caching or expansion. This flexibility helps you boost speed without replacing all storage drives later.

Ensure the total supported capacity meets your future growth plans by checking max drive size limits.

Operating System Features

The software ecosystem defines ease of use and available apps. Systems with intuitive interfaces and robust mobile apps make remote access and setup significantly easier for non-technical users.

Check if the system supports your required apps natively or through Docker for flexibility.

Security and Privacy

Strong security features like encryption and two-factor authentication protect your data from unauthorized access. Some models offer certified privacy standards ensuring your data remains local and safe.

Data protection technologies like snapshots and versioning prevent loss from accidental deletion or malware.

Surveillance Capabilities

If you plan to use your NAS for home or business security, verify camera support limits and integration features. Some units provide built-in surveillance centers that manage recordings and alerts effectively.

Check if camera licenses are required separately or included in the purchase price.

Media Streaming Support

For entertainment-focused setups, hardware transcoding for 4K content is essential for smooth playback. Ensure the device supports your preferred media server software like Plex or Emby out of the box.

HDMI outputs can also be valuable for direct connection to a television for home theater use.

Warranty and Support

A longer warranty period indicates manufacturer confidence in hardware durability. Check if technical support is available for your region and if updates are provided regularly.

Reliable customer support can be crucial if you face issues setting up or maintaining your system.

How to Use and Care for Your 4 Bay NAS

To begin, install compatible hard drives into the bays and connect the device to your router via Ethernet. Follow the on-screen prompts to initialize storage and create your first user account securely.

Configure automatic backups for your devices to ensure photos and documents are regularly saved. Set up user permissions to control who can access shared folders and what they can modify.

Regularly check for system updates to maintain security and performance. Ensure the unit has adequate ventilation to prevent overheating and prolong its operational lifespan.

Frequently Asked Questions

Is a 4 Bay NAS worth the investment?

Yes, a 4 Bay NAS offers significant value by providing centralized storage and data protection. It eliminates recurring cloud fees and gives you full control over your personal or business files.

Do I need to buy hard drives separately?

Most NAS devices are sold diskless, meaning you must purchase compatible hard drives separately. Check the manufacturer's compatibility list to ensure your drives work correctly with the system.

Can I use this for remote work?

Absolutely, most modern NAS devices offer secure remote access via mobile apps or web interfaces. This allows you to retrieve files from anywhere as long as you have an internet connection.

How do I protect my data from ransomware?

Look for features like immutable snapshots or versioning that prevent malicious encryption of files. Keeping backups on different devices or cloud locations adds an extra layer of security.

Can I upgrade RAM later?

Many models allow memory upgrades using standard DIMMs. Verify the maximum supported capacity and compatible RAM types before purchasing upgrades to ensure compatibility with your model.

Does it work with Mac and Windows?

Yes, compatible NAS units support multiple operating systems including macOS and Windows. You can connect via file sharing protocols to access data seamlessly from different devices.

Final Thoughts on Choosing the Best 4 Bay NAS

The UGREEN NAS DXP4800 GT and Synology models lead the pack with robust performance and versatile software ecosystems. These options stand out for users needing advanced features like virtualization and high-speed networking.

When selecting a model prioritize your specific needs such as media streaming or business security. A device with the right processor and ports will ensure smooth performance for your daily tasks.

Remember to verify current pricing and availability as these details can change frequently. Choosing the right 4 Bay NAS today ensures your data remains secure and accessible for years to come.