10 Best 4 Bay NAS in 2026

Finding the right network attached storage unit is crucial for modern data management. A good 4 Bay NAS offers ample space for files, media, and backups while ensuring accessibility.

We compared ten leading models based on processor power, memory, networking speeds, and software ecosystems. Our analysis highlights key strengths and weaknesses for various user needs.

Each pick below shows specific benefits and trade-offs to help you decide. Please note that product availability and pricing can change frequently online.

Top 3 Picks for Best 4 Bay NAS

Top 10 Best 4 Bay NAS in 2026 Compared

The following table provides a side-by-side comparison of all ten selected models to help you evaluate specifications and features quickly.

1. UGREEN NAS DXP4800 GT – Editor's Choice for Power Users

4.6Editor scoreCheck price on Amazon

UGREEN NAS DXP4800 GT

AMD Ryzen Embedded R2514

Up to 64GB RAM

Dual 10GbE networking

Up to 144TB capacity

The UGREEN NAS DXP4800 GT stands out as a high-performance option for creators and teams needing robust storage and processing capabilities. It receives strong ratings for its multitasking abilities and network speed.

Pros

• Powerful AMD processor
• High-speed 10GbE ports
• Expandable RAM capacity
• Surveillance Center built-in
• Local privacy controls

Cons

• Higher price point
• Drives sold separately

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Powered by an AMD Ryzen Embedded R2514 processor and 8GB of RAM expandable to 64GB, this device handles backups, media processing, and Docker apps smoothly. The dual 10GbE networking ports provide exceptionally fast data transfer rates suitable for 4K workflows.

While the hardware is impressive, the cost is higher than entry-level models. Additionally, users must purchase hard drives separately, which adds to the total investment. These trade-offs are acceptable for professionals requiring enterprise-grade speed.

This model is ideal for small offices or tech enthusiasts who need a reliable central storage hub. If you prioritize speed and expandability, the DXP4800 GT is a top recommendation.

High-Speed Network Connectivity

The dual 10GbE ports enable aggregate bandwidth up to 20Gbps, allowing for rapid file transfers and efficient multi-user access.

Surveillance and Security Features

Built-in Surveillance Center supports multiple IP cameras with local storage options, enhancing home or business security without cloud subscriptions.

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2. Asustor Drivestor 4 Gen 2 – Best Budget for Small Offices

4.0Editor scoreCheck price on Amazon

Asustor Drivestor 4 Gen 2

Realtek RTD1619B Quad-Core

2.5GbE high-speed network

Btrfs snapshot protection

4K media streaming

The Asustor Drivestor 4 Gen 2 offers a cost-effective solution for those entering the NAS market. It balances essential features with an accessible price point for home and small office use.

Pros

• Affordable pricing option
• Quad-Core processor
• Btrfs data protection
• 2.5GbE network port
• 4K media support

Cons

• Limited RAM capacity
• Lower performance ceiling

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Its upgraded Realtek Quad-Core processor provides smooth multitasking and lower power consumption. The 2.5GbE network port significantly improves transfer speeds compared to traditional Gigabit systems, while Btrfs snapshots protect against ransomware.

The RAM is limited to 1GB which may restrict heavy multitasking or advanced virtualization. Performance is adequate for standard file sharing and media streaming but not for intensive workloads.

Buyers seeking a reliable backup and media center without high costs will find this model appealing. It is a solid choice for budget-conscious users needing essential NAS functionality.

Data Protection Technology

Btrfs snapshots and WORM technology ensure critical files remain immutable and safe from accidental deletion or malicious attacks.

Media Streaming Capabilities

Supports smooth 4K media playback for smart TVs and mobile devices making it a versatile home entertainment hub.

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3. UGREEN NAS DXP4800 Pro – Best Premium for Professional Workflows

4.4Editor scoreCheck price on Amazon

UGREEN NAS DXP4800 Pro

Intel Core i3-1315U

96GB RAM expandable

Dual M.2 PCIe 4.0 slots

Up to 144TB storage

The UGREEN NAS DXP4800 Pro is engineered for demanding workflows requiring maximum performance and flexibility. It receives positive feedback from professionals needing a private workstation experience.

Pros

• Powerful Intel Core CPU
• High RAM expandability
• Dual network port speeds
• PCIe 4.0 SSD slots
• Enterprise-grade security

Cons

• Highest price point
• Drives not included

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Featuring an Intel Core i3-1315U processor and DDR5 RAM expandable to 96GB this device handles virtual machines and Docker containers effortlessly. The dual M.2 PCIe 4.0 slots allow for high-speed caching or storage pools to eliminate HDD bottlenecks.

The premium price may be prohibitive for casual users who do not need such robust capabilities. Additionally the complexity of managing advanced features requires some technical knowledge.

IT professionals and developers looking for a versatile hub with advanced capabilities should consider this model. It delivers enterprise-grade performance in a compact form factor.

Advanced Virtualization Support

Comprehensive support for Docker and Virtual Machines unlocks endless possibilities for running smart home hubs or private development environments.

Enterprise-Grade Security

Granular user permissions and Data Vault features ensure sensitive files remain encrypted and protected from unauthorized access.

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4. UGREEN DXP4800 Plus – Best All-Rounder for Families

4.6Editor scoreCheck price on Amazon

UGREEN DXP4800 Plus

High-performance processor

10GbE network port

AI Photo Album feature

Up to 144TB storage

The UGREEN DXP4800 Plus balances performance and ease of use making it suitable for families and small teams. It offers centralized storage with remote access capabilities without complex setup.

Pros

• Strong processor performance
• Fast 10GbE transfers
• User-friendly app interface
• AI photo organization
• Flexible RAID options

Cons

• Wired connection only
• Additional drive costs

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With a powerful processor and 10GbE network port users can back up files in seconds. The AI Photo Album feature automatically organizes photos by faces and scenes which saves time managing large libraries.

Users should note that this model supports wired Ethernet only and lacks Wi-Fi connectivity. This design choice ensures stability but limits placement options compared to wireless devices.

Those needing a reliable private cloud for photos and documents will appreciate this unit. The combination of speed and software features makes it a strong choice.

AI-Powered Photo Management

The built-in photo tools recognize faces and objects to organize memories efficiently and remove duplicates automatically.

Data Privacy and Control

Advanced encryption and permission management let users retain full ownership of their data without relying on third-party clouds.

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5. TERRAMASTER F4-425 – Best Value for Media Streaming

4.0Editor scoreCheck price on Amazon

TERRAMASTER F4-425

Intel x86 Quad-Core CPU

4GB RAM included

2.5GbE network port

Up to 120TB storage

The TERRAMASTER F4-425 delivers powerful performance in a quiet package suitable for living rooms. It supports 4K transcoding and multitasking which is ideal for media streaming applications.

Pros

• Efficient Quad-Core CPU
• Quiet 21dB operation
• Tool-free drive trays
• Hardware 4K transcoding
• Affordable entry price

Cons

• 4GB RAM limit
• Basic mobile app

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Equipped with an Intel x86 quad-core processor and 4GB RAM it handles Plex and Emby efficiently. The 2.5GbE port ensures fast file transfers while the tool-free HDD trays allow for quick installation.

The memory may be insufficient for heavy virtualization workloads. Users focused on media storage and sharing will find it sufficient for their needs.

Buyers looking for a cost-effective media server should consider this model. Its low noise level makes it perfect for home environments.

Media Server Capabilities

Hardware-level 4K decoding and DLNA support enable seamless streaming across multiple devices without buffering.

Mobile App Control

The TNAS Mobile app allows for initialization and remote synchronization directly from a smartphone or tablet.

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6. UGREEN NAS DH4300 Plus – Best for Beginners

4.2Editor scoreCheck price on Amazon

UGREEN NAS DH4300 Plus

Entry-level design

2.5GbE network port

Docker container support

Up to 128TB storage

The UGREEN NAS DH4300 Plus simplifies the NAS experience for new users transitioning from cloud storage. It offers automatic backups and intuitive app access for family photos and files.

Pros

• Beginner-friendly setup
• Smart photo backup
• One-time purchase cost
• Docker support
• Local data control

Cons

• No virtual machines
• Wired connection only

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Equipped with a high-performance processor and 8GB RAM it can run multiple apps simultaneously. The smart photo backup organizes media automatically allowing users to find memories quickly.

This model does not support virtual machines which limits advanced customization. However for basic home use its features are robust and easy to manage.

Households needing a private cloud for secure file sharing will appreciate this unit. It provides reliable data control at a competitive price.

Cost-Effective Storage

A one-time purchase avoids recurring monthly subscription fees making it a financially smart long-term investment.

Smart Photo Organization

AI algorithms recognize faces and objects to sort photos into albums without manual user input.

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7. Synology DS425+ – Best for Business Teams

4.6Editor scoreCheck price on Amazon

Synology DS425+

Synology OS platform

Granular access controls

Supports 30 IP cameras

3-Year warranty included

The Synology DS425+ is designed for team productivity with strong centralized repository features. It is highly rated for its reliable software and enterprise-grade support options.

Pros

• Excellent OS interface
• Granular access controls
• Fast file transfer speeds
• Professional support
• Enterprise data protection

Cons

• Higher cost
• Basic hardware specs

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Granular access controls and audit logs ensure company documents remain secure. The system supports concurrent access from multiple users which facilitates efficient collaboration in office settings.

The hardware specifications are modest compared to competitors but the software optimizes performance well. This model prioritizes stability and security over raw speed.

Small businesses needing a secure file server with long-term support should choose this device. Its reputation for reliability makes it a safe investment.

Data Protection

RAID redundancy combined with automated backups and snapshot technology prevents data loss from various causes effectively.

Surveillance Integration

Integrated support for up to 30 IP cameras allows the NAS to double as a security monitoring center.

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8. Synology DS925+ – Best for Advanced Users

4.2Editor scoreCheck price on Amazon

Synology DS925+

Dual 2.5GbE ports

Up to 565 MB/s throughput

File and photo management

3-Year limited warranty

The Synology DS925+ offers advanced file management and virtualization features in a compact 4-bay design. It appeals to users seeking robust performance within the Synology ecosystem.

Pros

• Dual network ports
• High read/write speeds
• Virtualization support
• Surveillance solutions
• Reliable warranty

Cons

• Premium pricing
• Complex setup for some

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Dual 2.5GbE ports ensure fast data transfers and redundancy. With built-in file and photo management it serves as a comprehensive solution for diverse storage needs.

Users may find the software interface intricate if they are new to network storage systems. However its flexibility justifies the learning curve for advanced applications.

This device is ideal for tech-savvy users wanting expandability and professional features. It provides a stable platform for growing data requirements.

Network Redundancy

Dual ports provide increased redundancy and allow for link aggregation to boost overall throughput significantly.

Data Management

Advanced tools for file organization and photo management streamline workflows for home and business users alike.

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9. Yxk Zero1 Pro – Best for Home Media

4.4Editor scoreCheck price on Amazon

Yxk Zero1 Pro

Intel N100 processor

8GB DDR4 RAM

Dual 2.5GbE ports

Up to 144TB storage

The Yxk Zero1 Pro offers a balance of performance and ease of use for home users. It receives high praise for its simple setup and media capabilities.

Pros

• Beginner-friendly setup
• 4K HDMI output
• Strong processor
• AI photo album
• Flexible OS support

Cons

• Third-party OS limitations
• Limited documentation

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Powered by an Intel N100 processor it handles everyday storage tasks efficiently. The 4K HDMI output allows direct connection to TVs for a home theater experience.

While flexible OS support is available it may confuse non-technical users. Most will find the pre-installed software sufficient for their needs.

Families wanting a private cloud with easy photo access should consider this model. It delivers solid value with essential features.

Home Theater Integration

The 4K HDMI port allows direct connection to compatible displays for media playback without extra hardware.

System Cooling

Dual-fan cooling ensures the aluminum enclosure dissipates heat effectively during long file transfers.

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10. Synology DS423 – Best for Family Backup

4.4Editor scoreCheck price on Amazon

Synology DS423

Secure private cloud

Ransomware-resistant backup

30 IP camera support

2-Year warranty included

The Synology DS423 is a secure option for family and business backup needs. It offers private cloud capabilities ensuring safe access and sharing of files.

Pros

• Reliable backup system
• Secure private cloud
• Easy file sharing
• Video surveillance options
• Strong encryption

Cons

• Standard performance specs
• Additional camera licenses

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Ransomware-resistant backup strategies protect data from malware and accidental deletion. The system supports up to 30 IP cameras making it versatile for security needs.

Camera licenses may need separate purchase which adds to the initial cost. However the core storage and backup features remain robust and effective.

Households prioritizing data security and backup automation will find this model beneficial. It provides peace of mind through comprehensive protection features.

Ransomware Protection

Immutable snapshots and versioned files ensure critical data can be restored even after malicious attacks.

File Server Capabilities

Local file sharing and team folders replace expensive external services like Dropbox or SharePoint.

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Buying Guide – How to Choose the Best 4 Bay NAS

Selecting the right 4 Bay NAS requires understanding specific technical factors that impact performance and longevity.

Processor Performance

The CPU determines how fast your NAS can handle tasks like transcoding, backups, and virtualization. Look for quad-core or higher processors to ensure smooth multitasking.

Choose a processor that matches your workload needs for better long-term efficiency.

Memory Capacity

RAM affects how many applications and users the device can support simultaneously. More memory allows for running Docker apps and virtual machines smoothly.

Prioritize models with expandable RAM slots for future-proofing your investment.

Network Speed

Higher network speeds like 2.5GbE or 10GbE significantly improve file transfer rates. This is essential for users working with large media files.

Ensure your router supports the NAS network speed to maximize performance.

Storage Expansion

Consider whether the unit supports M.2 SSDs or additional expansion units. This allows for caching or growing capacity without replacing the whole device.

Check the maximum supported drive capacity before purchase to meet your needs.

Software Ecosystem

The operating system determines ease of use and available apps. A good interface simplifies setup and ongoing management.

Choose a brand with regular updates and a reliable app ecosystem.

Data Protection

Look for RAID support and snapshot features to prevent data loss. Encryption ensures your files remain secure during transfers.

Always implement a backup strategy beyond just RAID redundancy.

Surveillance Features

Many models include built-in surveillance center software for IP cameras. This consolidates security storage and file storage into one device.

Verify camera compatibility and license requirements before relying on this feature.

Warranty and Support

A longer warranty period indicates manufacturer confidence in hardware reliability. Good customer support ensures you can resolve issues quickly.

Check the warranty terms for coverage details and support availability.

How to Use and Care for Your 4 Bay NAS

Install compatible hard drives into the drive bays carefully using the provided trays. Secure all connections including network cables and power adapters before turning on the device.

Access the NAS setup wizard via a web browser or mobile app. Follow the on-screen instructions to configure RAID arrays and user accounts securely.

Keep the firmware updated to benefit from security patches and new features. Ensure the device is placed in a well-ventilated area to prevent overheating.

Frequently Asked Questions

Final Thoughts on Choosing the Best 4 Bay NAS

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