UGREEN DXP4800 Pro
4.4Editor score
Intel Core i3 processor
Dual 10GbE network
96GB RAM expandable
In this guide
Finding the right network attached storage solution is essential for modern digital lifestyles. A 4 Bay NAS offers the perfect balance of capacity flexibility and performance for home users and small teams alike.
We have evaluated ten top models based on processor power software ecosystem ease of use and reliability. Our comparison highlights strengths in media handling backup automation and data protection features.
Each pick showcases specific benefits for different needs from budget friendly entry points to professional grade systems. Remember that hardware availability and pricing may shift so verify current listings before purchase.
Top 3 Picks for Best 4 Bay NAS
TERRAMASTER F4-425
4.0Editor score
Intel Quad Core processor
4K H265 decoding
Ultra quiet operation
Asustor Drivestor 4 Gen 2
4.0Editor score
Realtek Quad Core CPU
2.5GbE network port
Affordable entry price
Top 10 Best 4 Bay NAS in 2026 Compared
The following table provides a side-by-side overview of core specifications for each unit enabling quick comparison of hardware capabilities software features and connectivity options across the full lineup.
ProductsSpecificationsEditor scorePrice
Editor's Choice
TERRAMASTER F4-425
Intel x86 Quad Core
4GB RAM included
2.5GbE network
4K H265 decode
4.0Editor score
Editor's Choice
UGREEN DXP4800 GT
AMD Ryzen R2514
8GB DDR4 RAM
Dual 10GbE ports
ECC RAM supported
4.6Editor score
Best Premium
Synology DS425+
Synology OS DSM
Up to 10 users
30 IP cameras
3-year warranty
4.6Editor score
UGREEN DXP4800 Plus
High Performance CPU
10GbE network port
144TB capacity
AI photo management
4.6Editor score
UGREEN DH4300 Plus
Entry Level NAS
8GB LPDDR4X RAM
Docker support
2.5GbE port
4.2Editor score
Synology DS925+
522MB/s throughput
Dual 2.5GbE
File management tools
3-year warranty
4.2Editor score
Yxk Zero1 Pro
Intel N100 CPU
8GB DDR4 RAM
4K HDMI output
Docker supported
4.4Editor score
Asustor Drivestor 4 Gen 2
Realtek Quad Core
1GB DDR4 RAM
2.5GbE network
Btrfs support
4.0Editor score
Synology DS423
Secure private cloud
30 IP cameras
Ransomware protection
2-year warranty
4.4Editor score
UGREEN DXP4800 Pro
Intel Core i3
96GB RAM expandable
Dual 10GbE
Pro workflows
4.4Editor score
1. TERRAMASTER F4-425 – Best Overall Value
TERRAMASTER F4-425
Intel Quad Core CPU
4GB RAM included
2.5GbE port
4K H265 decode
The TERRAMASTER F4-425 stands out as a top contender for users seeking high performance without excessive noise. With an Intel x86 quad-core processor and 4GB of RAM this NAS delivers robust multitasking capabilities.
Pros
- Ultra quiet 21dB operation
- Tool free drive trays
- 4K video support
- Flexible RAID arrays
- TNAS Mobile app
Cons
- Setup requires PC for initial steps
- No ECC RAM support
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Its hardware level 4K H.265 decoding ensures smooth media playback through Plex or Emby. The 2.5GbE port facilitates ultra-fast file transfers essential for large media libraries.
While setup typically benefits from a PC connection the TNAS Mobile app allows comprehensive control once configured. The tool free Push-Lock HDD trays make drive installation incredibly quick and convenient.
This model is ideal for home users prioritizing silent operation and fast file access. Its balance of specs and features makes it a strong recommendation for general storage needs.
Silent Operation for Any Room
Running at just 21dB the F4-425 fits in quiet environments like bedrooms without disturbing sleep or work.
Versatile Media Streaming
Support for Plex Emby and Jellyfin with DLNA compatibility allows seamless streaming to all smart devices.
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2. UGREEN DXP4800 GT – Best High Performance Multitasking
UGREEN DXP4800 GT
AMD Ryzen R2514
8GB DDR4 RAM
Dual 10GbE ports
ECC RAM upgradeable
The UGREEN DXP4800 GT is engineered for creators who need serious processing power for media tasks. Its AMD Ryzen Embedded R2514 processor handles virtualization and Docker apps efficiently.
Pros
- Powerful AMD Ryzen processor
- Dual 10GbE networking
- Surveillance Center built in
- SD card slot included
- UGOS Pro interface
Cons
- Plex requires Docker setup
- No Wi-Fi connectivity
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Dual 10GbE networking provides up to 2.5GB/s theoretical throughput enabling local like editing speeds. The built-in Surveillance Center turns the NAS into a complete security hub for homes or offices.
The SD card slot simplifies importing photos and videos directly without extra readers. UOS Pro offers a clean interface that guides users through setup and advanced app management.
This unit excels for tech enthusiasts requiring high speed data transfers and robust hardware. It is a premium choice for teams managing heavy multimedia workloads.
High Speed Data Transfers
Dual 10GbE ports allow massive file transfers and backups to complete in minutes rather than hours.
Integrated Security Hub
Support for ONVIF cameras enables centralized monitoring without needing separate cloud subscriptions.
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3. Synology DS425+ – Best Team Productivity
Synology DS425+
Synology DSM OS
10 concurrent users
30 IP camera support
3-year warranty
The Synology DS425+ focuses on centralized storage and collaboration for small offices. It offers stable transfers speeds suitable for sharing documents across ten or more users simultaneously.
Pros
- Centralized file management
- Granular access controls
- Professional surveillance system
- Enterprise support available
- Multi-layered data protection
Cons
- Higher price point
- Requires external drives
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Data protection is a priority with RAID redundancy automated backups and snapshot technology. This ensures files are secure against accidental deletion or system failures.
Its Surveillance System supports up to thirty IP cameras making it a versatile security solution. The enterprise support team provides dedicated account management for critical environments.
This model is perfect for businesses needing reliability and organized team access. The extensive feature set justifies the investment for professional workflows.
Secure Team Collaboration
Granular access controls ensure employees see only what they need while keeping company data safe.
Robust Data Safety
Multiple backup layers including snapshots prevent data loss from malware or hardware issues.
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4. UGREEN DXP4800 Plus – Best for Collaboration
UGREEN DXP4800 Plus
High Performance CPU
10GbE port
144TB capacity
AI photo features
The UGREEN DXP4800 Plus balances high performance with ease of use for families and small teams. It features a powerful processor and 10GbE networking for rapid data handling.
Pros
- Super fast 10GbE transfers
- 100% data ownership
- AI photo album
- Widely compatible drives
- Easy user app
Cons
- Wired connection only
- Plex via Docker
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Users retain full control over their data without relying on third-party clouds. The AI-powered photo album organizes libraries by faces and scenes automatically.
Compatibility with major drive brands like Western Digital and Seagate simplifies upgrades. The user-friendly app ensures secure access across all operating systems and devices.
This NAS is excellent for those prioritizing privacy and speed. Its capacity supports massive libraries without needing frequent expansions.
Private Cloud Ownership
Advanced encryption and local storage ensure your files remain under your complete control.
Intelligent Photo Management
Recognition of faces scenes and objects keeps millions of photos organized effortlessly.
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5. UGREEN DH4300 Plus – Best for Beginners
UGREEN DH4300 Plus
Entry Level NAS
8GB LPDDR4X RAM
2.5GbE port
4K HDMI output
The UGREEN DH4300 Plus is designed specifically for users transitioning from cloud storage to a private server. It simplifies the setup process with NFC connectivity and clear video instructions.
Pros
- NFC setup capability
- Cost effective solution
- Smart photo backup
- 24h specialist support
- Beginner friendly manual
Cons
- No virtual machine support
- No Wi-Fi connection
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Smart photo backup ensures family memories are automatically saved and organized by the AI album. The entry-level price point makes it accessible for first-time NAS adopters.
Despite being entry-level it supports Docker apps and 2.5GbE speeds for efficient backups. The magnetic dust cover aids in maintaining a clean aesthetic and proper alignment.
Ideal for home users and remote workers seeking simplicity. It delivers core private cloud benefits without the complexity of professional systems.
Easy NFC Connectivity
Connecting via NFC simplifies the initial setup steps for non-technical users significantly.
Significant Long Term Savings
One time purchase avoids recurring cloud fees saving thousands of dollars over a decade.
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6. Synology DS925+ – Best File Throughput
Synology DS925+
522MB/s read write
Dual 2.5GbE ports
File management tools
3-year warranty
The Synology DS925+ offers consistent high-speed file transfers for busy networks. Dual 2.5GbE ports ensure reliable throughput for large file handling and backups.
Pros
- Stable data transfers
- Built-in file tools
- Virtualization capabilities
- High throughput speeds
- Official drive support
Cons
- Premium price tag
- Limited RAM on board
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Its ecosystem includes comprehensive file management and virtualization tools. This flexibility allows the unit to serve multiple roles beyond simple storage.
Synology's 3-year limited hardware warranty provides peace of mind for long-term use. Official compatibility lists ensure stable performance with certified drives.
This device is well suited for small offices requiring steady and efficient data access. Its reliability makes it a trusted choice for critical data.
Consistent High Speed
522MB/s throughput supports rapid backups and seamless media streaming without bottlenecks.
Comprehensive Software Suite
Built-in tools for files and virtualization reduce the need for additional hardware.
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7. Yxk Zero1 Pro – Best for Custom OS
Yxk Zero1 Pro
Intel N100 CPU
8GB DDR4 RAM
4K HDMI output
Third-party OS ready
The Yxk Zero1 Pro balances accessibility with flexibility for home enthusiasts. Guided mobile app setup makes it easy for first-time users to register and start storing files.
Pros
- Beginner friendly setup
- Shared media library
- Docker flexibility
- Aluminum cooling housing
- Third-party OS support
Cons
- Usable capacity varies
- Basic software tools
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Its Intel N100 processor handles everyday network tasks efficiently while supporting Docker apps. The 4K HDMI output allows direct TV connection for media playback.
Enthusiasts can install third-party operating systems like TrueNAS or Unraid for custom setups. The aluminum alloy enclosure aids heat dissipation during overnight tasks.
This NAS is perfect for users wanting a base hardware platform with software freedom. It supports diverse workflows from home servers to custom development.
Direct TV Connection
4K HDMI output turns the NAS into a media center directly connected to your display.
Flexible Software Options
Support for various OS choices allows tailoring the system to unique project needs.
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8. Asustor Drivestor 4 Gen 2 – Best Budget Option
Asustor Drivestor 4 Gen 2
Realtek Quad Core
2.5GbE network
Btrfs snapshots
4K media center
The Asustor Drivestor 4 Gen 2 provides a cost-effective entry into 4-bay storage. Its Realtek quad-core processor handles daily backups and media management efficiently.
Pros
- Affordable entry price
- 2.5GbE network upgrade
- Btrfs snapshot technology
- WORM protection
- Remote access cloud
Cons
- Low RAM capacity
- Basic interface
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Btrfs snapshots and WORM technology protect files from ransomware and accidental deletion. This level of data protection is rare at this price point.
2.5GbE networking improves file transfers compared to traditional gigabit systems. Users can create a private cloud for secure remote access without third-party fees.
This budget-friendly unit is ideal for home users needing basic storage and security. It delivers essential NAS functions without compromising on key safety features.
Advanced Data Safety
Btrfs snapshots enable instant data restoration to previous points in time securely.
Fast Network Performance
2.5GbE port provides faster transfer speeds than standard 1GbE systems.
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9. Synology DS423 – Best for Security
Synology DS423
Secure private cloud
30 IP cameras
Immutable snapshots
Ransomware resistant
The Synology DS423 emphasizes data security and protection against cyber threats. Immutable snapshots guard against ransomware and ensure files can be recovered quickly.
Pros
- Secure file sharing
- Comprehensive data protection
- Versatile video surveillance
- Ransomware resistant backup
- Expert customer support
Cons
- Camera license separate
- Standard throughput
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Video surveillance support allows up to thirty IP cameras to be managed from one platform. The secure private cloud feature ensures files are accessible from anywhere safely.
Expert customer support and ongoing software updates maintain system reliability. It functions well as a file server replacing expensive external sharing services.
This model suits families and businesses prioritizing safety above all else. Its security features provide peace of mind for valuable personal and business data.
Ransomware Protection
Immutable snapshots prevent malicious software from deleting or encrypting your files.
Private Cloud Access
Secure remote access allows you to manage files without using public services.
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10. UGREEN DXP4800 Pro – Best for Power Users
UGREEN DXP4800 Pro
Intel Core i3-1315U
96GB RAM expandable
Dual 10GbE network
Data Vault encryption
The UGREEN DXP4800 Pro delivers workstation class performance for demanding IT workflows. Its Intel Core i3 processor handles virtual machines and containers with ease.
Pros
- Pro-performance Intel Core
- 1.25GB/s transfer speed
- Granular permissions
- On-device AI processing
- Enterprise-grade security
Cons
- High initial cost
- Advanced features needed
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Dual high-speed network ports enable blazing fast data transfers reaching up to 1.25GB/s. Granular permission controls allow precise management of large user bases.
The Data Vault encrypts sensitive files ensuring privacy even if the main system is compromised. All AI photo processing occurs on-device to maintain user privacy.
This NAS is perfect for professionals requiring maximum power and control. It stands as a robust server for advanced development and business use.
Maximum Processing Power
Intel Core i3 with expandable RAM handles complex virtualization and Docker workloads.
Enhanced Security Features
Data Vault encryption adds a critical layer of protection for sensitive information.
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Buying Guide – How to Choose the Best 4 Bay NAS
Selecting the right 4 Bay NAS requires evaluating several critical factors to match your specific storage and performance needs.
Processor Power and RAM
The CPU determines how fast the system processes backups and media streams. Higher core counts and clock speeds ensure smooth multitasking especially when running Docker apps. RAM capacity affects how many users or apps can run simultaneously without lag. Aim for at least 8GB for complex tasks like virtual machines or heavy photo indexing.
Network Connectivity
Network ports dictate how fast files move between your PC and the NAS. Gigabit ports are standard but 2.5GbE or 10GbE offers significantly faster transfer speeds. For large media libraries or video editing workloads faster networking prevents bottlenecks. Ensure your router supports the higher speeds to utilize these benefits.
Storage Capacity and Expansion
A 4-bay design allows up to four drives which can reach massive capacity limits. Check the maximum supported drive size such as 30TB or 32TB per bay. Some models offer M.2 slots for caching or additional storage pools. Verify if expansion units are compatible if you need more than 4 bays later.
Operating System and Ecosystem
The software interface influences ease of use and available features. Synology DSM is known for stability and extensive apps. UGREEN UGOS offers modern AI features and simple setup. Consider if the system supports your required third-party apps like Plex or Home Assistant. A user-friendly interface reduces setup time significantly.
Media Transcoding Capabilities
Hardware transcoding allows direct streaming to devices without CPU strain. Look for support of H.265 or 4K decoding for smooth high-quality playback. This feature is essential for using the NAS as a dedicated media server. Ensure compatibility with your preferred streaming client such as Plex or Emby.
Data Protection and Security
Security features protect your data from loss or unauthorized access. Support for RAID configurations ensures redundancy if a drive fails. Encryption and snapshot technology safeguard against ransomware and accidental deletion. Regular security updates from the vendor are vital for long-term safety.
Mobile App Functionality
A robust mobile app lets you manage files remotely without a computer. Check for features like photo backup remote sync and user management. Good apps should work on both iOS and Android with intuitive design. Remote access capabilities are key for checking files while traveling.
Noise and Power Consumption
For home offices or living rooms low noise levels are preferable. Some units run under 21dB making them silent for daily use. Energy efficient CPUs help reduce electricity bills during long-term operation. Ensure cooling is adequate to keep drives safe without excessive fan noise.
How to Use and Care for Your 4 Bay NAS
Start by installing compatible hard drives into the tool-free trays if your unit has them. Secure the drives firmly and connect the power and network cables to your router.
Follow the manufacturer's mobile app setup guide to initialize the system and create your first admin account. This usually involves a quick guided tutorial to configure the network and file sharing.
Regularly update the operating system to maintain security and access the latest features. Backup your critical data to external media to ensure redundancy beyond the NAS itself.
Frequently Asked Questions
Do I need to buy hard drives separately with a 4 Bay NAS?
Yes most 4 Bay NAS units sold as diskless models do not include hard drives. You must purchase compatible SATA SSDs or HDDs separately to begin storage. Check the compatibility list on the vendor website to ensure drive support.
Can I access my NAS files when I am not at home?
Yes all reviewed models support secure remote access via their own mobile apps or web browsers. You just need to configure the internet connection settings during setup. This allows you to view files from anywhere with an internet connection.
What is RAID and why does it matter for a NAS?
RAID combines multiple drives into a single logical unit for performance or data redundancy. It ensures that if one drive fails your data remains safe on the others. Most 4-bay NAS systems support RAID 1 5 or 6 for balanced protection.
How much storage capacity can a 4 Bay NAS hold?
A 4-bay NAS typically holds up to 120TB or 144TB depending on the drive sizes supported. Each bay usually accommodates drives up to 30TB or 32TB. This total capacity is ideal for large media libraries or business archives.
Can I run Plex on these NAS devices?
Most modern NAS models support running Plex through Docker containers or native apps. This allows smooth 4K streaming directly from the NAS to your smart TV. You may need to install Plex manually via the app center or Docker.
Is data secure on a NAS compared to the cloud?
Yes local NAS storage keeps your data physically in your possession without third-party servers. Encryption features add extra protection against unauthorized access. However you must maintain your own security updates and backups.
How do I expand storage if I fill all 4 bays?
Depending on the model you may be able to add expansion enclosures that connect via USB or Ethernet. This allows you to increase capacity beyond the initial 4 bays. Check manufacturer documentation for supported expansion units.
What is the difference between a NAS and an external hard drive?
A NAS connects to your network allowing multiple users to access files simultaneously. External drives usually connect via USB to one computer at a time. NAS also offers centralized backups and remote access features.
Final Thoughts on Choosing the Best 4 Bay NAS
The 4 Bay NAS market offers diverse options from budget friendly entry points to professional powerhouses. Models like the TERRAMASTER F4-425 and UGREEN DXP4800 Pro stand out for specific user needs.
Prioritize processor speed and network connectivity if you work with large files daily. For casual storage focus on ease of use and mobile app features to maximize convenience.
Always verify current pricing and availability before making a purchase decision. Technology evolves quickly so checking the latest specs ensures you get the best value.