Asustor Drivestor 4 Gen 2
4.0Editor score
Realtek Quad-Core CPU
Btrfs Snapshot Protection
2.5GbE Port Upgrade
In this guide
A 4 Bay NAS offers powerful centralized storage for homes and small businesses. It supports large hard drives, RAID redundancy, and smooth 4K media streaming for all your devices.
We evaluated ten top models based on processor power, RAM capacity, networking speed, and software ecosystems. Our analysis highlights reliability, ease of use, and advanced features like Docker support.
Each pick showcases specific strengths for different users, from beginners to power professionals. Remember that prices fluctuate frequently, so check current deals before making your final purchase decision today.
Top 3 Picks for Best 4 Bay NAS
UGREEN NAS DXP4800 GT
4.6Editor score
AMD Ryzen Embedded R2514
Dual 10GbE Networking
UGOS Pro with Docker
UGREEN NAS DXP4800 Pro
4.4Editor score
Intel Core i3-1315U
10GbE and 2.5GbE
Expandable to 96GB RAM
Top 10 Best 4 Bay NAS in 2026 Compared
This side-by-side comparison highlights the key specifications and standout features of each 4 Bay NAS to help you find the perfect match for your storage needs.
ProductsSpecificationsEditor scorePrice
Best Budget
TERRAMASTER F4-425
Intel x86 Quad-Core CPU
4GB RAM
2.5GbE Port
4K H.265 Decoding
4.0Editor score
Editor's Choice
UGREEN NAS DXP4800 GT
AMD Ryzen R2514
8GB DDR4 RAM
Dual 10GbE Ports
UGOS Pro OS
4.6Editor score
Best Premium
Synology DS425+
Synology Custom CPU
High-Speed NAS
Enterprise Support
Surveillance Center
4.6Editor score
UGREEN NAS DXP4800 Plus
High-Performance Processor
10GbE Network
AI Photo Album
Docker Support
4.6Editor score
UGREEN NAS DH4300 Plus
Entry-Level NAS
2.5GbE Port
AI Photo Album
Magnetic Dust Cover
4.2Editor score
Synology 4-Bay DS925+
522 MB/s Throughput
Dual 2.5GbE
Virtualization Support
3-Year Warranty
4.2Editor score
Yxk Zero1 Pro
Intel N100 CPU
8GB RAM
Dual 2.5GbE
4K HDMI Output
4.4Editor score
Asustor Drivestor 4 Gen 2
Realtek RTD1619B
2.5GbE Network
Btrfs Snapshots
4K Media Center
4.0Editor score
Synology DS423
Private Cloud Access
Ransomware Resistant
Video Surveillance
File Server
4.4Editor score
UGREEN NAS DXP4800 Pro
Intel Core i3
10GbE + 2.5GbE
Docker and VMs
Enterprise-Grade Security
4.4Editor score
1. UGREEN NAS DH4300 Plus – Best Budget for Beginners
UGREEN NAS DH4300 Plus
Intel N100 Processor
8GB LPDDR4X RAM
2.5GbE Network
AI Photo Album
The UGREEN NAS DH4300 Plus is an excellent entry-level 4 Bay NAS designed for beginners and home users. It delivers solid performance for storage media and private cloud needs without a steep learning curve.
Pros
- Affordable Entry Point
- AI Photo Organization
- Magnetic Dust Cover
- Beginner-Friendly Setup
- Docker Support
Cons
- No Virtual Machines
- Limited RAM Expansion
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It features an Intel N100 processor and 8GB of LPDDR4X RAM, enabling smooth multitasking. The AI photo album organizes photos by faces and scenes, while Docker support allows app customization. NFC connectivity simplifies setup significantly.
While virtual machines are not supported, this unit excels at file sharing and backups. The magnetic dust cover helps manage airflow and cooling effectively for long-term reliability in home environments.
This NAS is ideal for families needing centralized storage. It offers cost-effective storage compared to monthly cloud fees, making it a smart long-term investment for home data management needs.
Smart Photo Management
The AI photo album automatically recognizes faces and scenes to keep your memories organized efficiently without manual sorting efforts by users.
Cost-Efficient Storage
Switching to this NAS saves money compared to recurring cloud subscriptions, offering a one-time purchase that pays off over several years of use.
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2. UGREEN NAS DXP4800 GT – Editor's Choice for Performance
UGREEN NAS DXP4800 GT
AMD Ryzen R2514
8GB RAM Expandable
Dual 10GbE Ports
UGOS Pro OS
The UGREEN NAS DXP4800 GT is a high-performance 4 Bay NAS designed for creators and professionals. It features an AMD Ryzen Embedded R2514 processor that handles heavy workloads effortlessly.
Pros
- Dual 10GbE Networking
- Expandable to 64GB RAM
- Surveillance Center Built-In
- High-Speed SSD Expansion
- UGOS Pro Interface
Cons
- Non-ECC RAM Default
- Plex Requires Docker
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With dual 10GbE ports and expandable RAM, this NAS supports 4K/8K editing directly. The UGOS Pro system simplifies management, while the Surveillance Center secures footage locally without extra subscriptions.
Setup is guided and easy for technical enthusiasts. ECC RAM upgrades are available for error correction, ensuring reliability for critical business workflows demanding consistent uptime and performance levels.
This NAS is perfect for teams needing fast data access. Its robust feature set justifies the investment for users requiring powerful local storage solutions beyond basic file sharing capabilities.
High-Speed Connectivity
Dual 10GbE ports provide aggregate bandwidth up to 2.5GB/s for fast file transfers and efficient 4K workflows without network bottlenecks.
Versatile App Ecosystem
UGOS Pro supports Docker and virtual machines, allowing you to host websites or Home Assistant directly on the NAS system locally.
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3. UGREEN NAS DXP4800 Pro – Best Premium Powerhouse
UGREEN NAS DXP4800 Pro
Intel Core i3-1315U
8GB DDR5 RAM
10GbE + 2.5GbE
96GB RAM Expandable
The UGREEN NAS DXP4800 Pro stands as the top premium 4 Bay NAS for developers and IT professionals. It features an Intel Core i3-1315U processor delivering powerful performance for virtualization tasks.
Pros
- Intel Core i3 Processor
- Dual High-Speed Ports
- 96GB RAM Support
- Local AI Photo Album
- Docker and VMs
Cons
- High Price Point
- Requires HDD Purchases
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It supports up to 96GB of RAM and includes both 10GbE and 2.5GbE ports for blazing-fast transfers. Local AI processing ensures privacy while organizing massive photo libraries automatically without external servers.
This NAS functions as a versatile private workstation. It offers extensive storage flexibility and enterprise-grade security, making it ideal for video editors needing high-speed caching and local development environments.
This model is for power users who need a workstation-level NAS. Its extensive feature set and robust hardware ensure it can handle complex workloads with ease and reliability.
Pro-Grade Performance
The Intel Core i3 processor with 96GB RAM support enables smooth virtualization and Docker container management for demanding professional workflows.
Privacy and Security
Data Vault encryption and local AI processing ensure sensitive files remain secure on device without third-party cloud sharing or leaks.
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4. Synology DS425+ – Best for Enterprise Support
Synology DS425+
278 MB/s Speeds
10+ User Support
Granular Access Control
Surveillance System
The Synology DS425+ is a high-end 4 Bay NAS designed for business and enterprise users. It offers centralized storage with granular access controls and audit logs for secure data management.
Pros
- Team Productivity Features
- Centralized Repository
- 3-Year Warranty
- Audit Logs
- 30 IP Cameras Support
Cons
- Limited Expansion
- Higher Price Point
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With support for over ten users simultaneously, it serves as a powerful team productivity hub. The 3-year warranty and dedicated technical account management provide peace of mind for critical business environments.
Multi-layered data protection combines RAID redundancy with snapshot technology. The surveillance system supports up to 30 IP cameras, offering a unified solution for media and security monitoring.
This NAS suits offices needing reliable file sharing. It replaces expensive cloud services and ensures data remains secure with enterprise-grade protection and support features.
Enterprise Support
The 3-year warranty and dedicated technical account management ensure businesses receive expert help for critical production environments.
Data Protection
Multi-layered protection includes RAID and automated backups to prevent data loss from any cause effectively.
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5. UGREEN NAS DXP4800 Plus – Best for Families
UGREEN NAS DXP4800 Plus
10GbE Network Port
AI Photo Album
144TB Capacity
Docker Support
The UGREEN NAS DXP4800 Plus is tailored for families and small teams needing centralized storage. It provides a better alternative to external drives with automatic backups and remote access features.
Pros
- Massive Storage Capacity
- Super-Fast Transfers
- AI Photo Organization
- Flexible Permissions
- Universal Compatibility
Cons
- HDD Not Included
- No Wi-Fi
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Its 10GbE network port ensures lightning-fast transfers. The AI-powered photo album organizes media by faces and scenes, while flexible permissions protect privacy during collaboration on shared files.
Users can store massive amounts of data without limits. Secure private cloud access ensures 100% data ownership, eliminating reliance on third-party cloud servers for sensitive family data.
This NAS is perfect for households with growing data needs. It offers seamless collaboration across devices and robust encryption to keep private information safe.
Secure Private Cloud
Advanced encryption and flexible permissions ensure you retain 100% data ownership and protect privacy during collaboration.
Massive Storage
Support for up to 144TB capacity ensures you never worry about storage limits for photos or videos again.
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6. Synology DS925+ – Best for Stable Transfers
Synology 4-Bay DS925+
522 MB/s Throughput
Dual 2.5GbE Ports
File Management
3-Year Warranty
The Synology 4-Bay DS925+ is a reliable diskless NAS for stable data transfers. It supports official drive compatibility and offers consistent performance for file and photo management.
Pros
- 565 MB/s Write Speed
- Dual 2.5GbE Ports
- Built-in File Management
- Data Protection Features
- Reliable Support
Cons
- Basic RAM
- No Expansion Unit
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With dual 2.5GbE ports, it ensures redundancy and fast network transfers. Its built-in solutions for virtualization and surveillance make it versatile for diverse home and small office needs.
The 3-year limited hardware warranty backs this unit. It delivers stable throughput, ensuring that media streaming and backups run smoothly without interruptions or slowdowns over time.
This NAS is ideal for users prioritizing reliability. Its balanced features make it a solid choice for general-purpose storage and backup tasks.
Dual Network Redundancy
Dual 2.5GbE ports provide both fast transfer speeds and network redundancy for stable performance.
Built-in Solutions
Integrated file management, virtualization, and surveillance solutions offer versatile tools for diverse user needs.
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7. Yxk Zero1 Pro – Best for Home Theater
Yxk Zero1 Pro
Intel N100 CPU
4K HDMI Output
Dual 2.5GbE
Aluminum Housing
The Yxk Zero1 Pro is a beginner-friendly 4 Bay NAS for home media. It features an Intel N100 processor and direct 4K HDMI output for connected TV playback without extra PCs.
Pros
- Direct 4K HDMI Output
- Intel N100 Performance
- Aluminum Cooling
- Docker Flexibility
- Beginner Setup
Cons
- Third-Party OS Risk
- Drives Sold Separately
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Dual 2.5GbE ports support link aggregation for fast access. The aluminum housing aids heat dissipation, while Docker and third-party OS support offer flexibility for experienced users.
Setup is straightforward with guided steps. It serves as a shared storage hub, enabling multiple members to access files or build custom media libraries with ease.
This NAS is perfect for home theater enthusiasts. Its hardware directly supports media output, making it a unique and convenient choice for living room setups.
Direct HDMI Playback
Connect the 4K HDMI output to a TV for direct media playback, eliminating the need for separate client devices.
Flexible OS Options
Support for third-party OS like TrueNAS allows experienced users to customize the software environment as desired.
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8. Asustor Drivestor 4 Gen 2 – Best Budget Media Center
Asustor Drivestor 4 Gen 2
Realtek RTD1619B
1GB DDR4 RAM
2.5GbE Port
Btrfs Snapshots
The Asustor Drivestor 4 Gen 2 is an affordable 4 Bay NAS offering optimized quad-core performance. It handles automated backups and data management efficiently with lower power consumption.
Pros
- Quad-Core Performance
- Btrfs Snapshot Protection
- WORM Technology
- 4K Media Support
- Low Power Consumption
Cons
- Limited RAM
- Budget Build Quality
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Enterprise-grade data protection using Btrfs snapshots helps protect against ransomware. WORM technology ensures critical documents remain immutable and safe from accidental deletion or malware attacks.
It supports 4K media streaming for smart TVs. The 2.5GbE network upgrade provides significantly faster transfers compared to traditional Gigabit systems.
This NAS is great for budget-conscious users needing private cloud access. Its feature set balances performance and protection effectively for home and small office use.
Btrfs Protection
Btrfs snapshots allow instant data restoration to previous points in time, providing robust ransomware protection.
4K Streaming
The NAS supports smooth 4K media playback, transforming your system into a robust home media center for entertainment.
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9. Synology DS423 – Best for Ransomware Protection
Synology DS423
Secure Private Cloud
Ransomware-Resistant Backup
30 IP Cameras
2-Year Warranty
The Synology DS423 focuses on secure file sharing and backup for families and businesses. It offers a secure private cloud with remote access and sharing capabilities for collaborators.
Pros
- Immutable Snapshots
- Photo Vault
- Versatile Surveillance
- Secure Remote Access
- Team Folder Sharing
Cons
- Camera License Fees
- Limited RAM
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Ransomware-resistant backup uses immutable snapshots and versioned files to protect data. The versatile video surveillance system archives and analyzes footage from up to 30 IP cameras.
It replaces expensive SharePoint services with local file sharing. Access controls ensure files remain safe, while the 2-year warranty ensures reliable support and hardware reliability.
This NAS is ideal for privacy-focused users. Its robust security features protect against threats while providing efficient media management tools for everyday use.
Ransomware Resistant
Immutable snapshots and multi-destination backup strategies protect critical data against malware and accidental loss.
Video Surveillance
Intuitive monitoring tools archive footage from up to 30 IP cameras, offering comprehensive home security solutions.
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10. TERRAMASTER F4-425 – Best Quiet Operation
TERRAMASTER F4-425
Intel x86 Quad-Core
21dB Quiet Operation
Tool-Free Push-Lock
TRAID Arrays
The TERRAMASTER F4-425 is a powerful 4 Bay NAS designed for quiet home environments. It handles 4K transcoding and multitasking effortlessly with an Intel x86 quad-core processor.
Pros
- Ultra-Quiet 21dB
- 4K H.265 Decoding
- Tool-Free Design
- TNAS Mobile App
- CloudSync Support
Cons
- Limited RAM
- Basic OS Features
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Operating at just 21dB, it fits into bedrooms or quiet spaces. The tool-free Push-Lock design allows installation in 10 seconds. TNAS Mobile app provides full control without a PC.
It supports up to 120TB storage and CloudSync for cross-platform access. TRAID arrays offer flexible storage space. Its AI smart album helps organize photos efficiently for easy retrieval.
This NAS is ideal for quiet home setups. Its ease of use and silent operation make it perfect for personal multimedia hubs and backups.
Silent Operation
Operating at just 21dB ensures quiet environments like bedrooms remain undisturbed during storage and streaming tasks.
Flexible Storage
TRAID arrays provide 30% more storage space than traditional RAID, offering flexible expansion and redundancy options.
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Buying Guide – How to Choose the Best 4 Bay NAS
Selecting the right 4 Bay NAS depends on your storage needs, performance requirements, and budget. Consider these critical factors before purchasing.
Processor Power
The processor determines how well a NAS handles multitasking, transcoding, and virtualization. Look for Intel x86 or AMD Ryzen chips for demanding tasks.
Prioritize multi-core processors for smooth performance with multiple users and apps.
RAM Capacity
RAM affects speed and stability when running multiple applications. 8GB or more is recommended for Docker containers and virtual machines.
Ensure the NAS supports RAM expansion for future-proofing your investment.
Network Speed
Networking speed impacts transfer rates. 10GbE or Dual 2.5GbE ports enable faster backups and streaming compared to standard Gigabit connections.
Choose models with high-speed ports if you edit large files directly from the NAS.
Software Ecosystem
The operating system influences ease of use. Look for intuitive interfaces, app stores, and robust photo management features like AI organization.
Select a NAS with a mature software ecosystem for better support and features.
Data Protection
RAID configurations like RAID 5 or 6 protect against drive failure. Snapshot technology adds an extra layer against ransomware or accidental deletion.
Prioritize models with advanced data protection features for critical data safety.
Media Streaming
For media enthusiasts, 4K transcoding capabilities are essential. Ensure the NAS supports hardware decoding for formats like H.265.
Select a NAS with 4K HDMI or direct streaming to simplify home theater setups.
Expansion and Upgrade
Consider future storage needs. Some NAS units support NVMe M.2 slots for caching or additional SSD storage.
Choose expandable models to accommodate growing data without replacing the entire device.
Warranty and Support
A reliable warranty ensures peace of mind. Look for brands offering at least 2 to 3 years of hardware coverage and dedicated support.
Prioritize vendors with strong customer service for troubleshooting and technical assistance.
How to Use and Care for Your 4 Bay NAS
Start by installing compatible hard drives into the trays and connecting the NAS to your network. Use the manufacturer's app to initialize the device and format drives securely.
Create user accounts and set up folders for sharing. Enable RAID to protect data and configure regular backup schedules to local or cloud destinations.
Keep firmware updated to maintain security and performance. Ensure proper ventilation to prevent overheating and monitor drive health regularly via the admin interface.
Frequently Asked Questions
Do 4 Bay NAS systems come with hard drives included?
Most 4 Bay NAS models are sold diskless, meaning you must purchase hard drives separately. Check compatibility lists on the manufacturer website to ensure drives fit properly.
Can I stream 4K movies directly from my NAS?
Yes, many modern 4 Bay NAS support hardware-level 4K transcoding. Ensure your NAS model has the right CPU and HDMI output for smooth playback.
What is RAID and why do I need it?
RAID combines multiple drives for redundancy and performance. It protects your data if one drive fails, ensuring you can recover files without total data loss.
How do I access my NAS remotely?
Set up remote access through the manufacturer's app or web portal. Enable secure connections like SSL to access files safely from anywhere.
Is Docker support important for home users?
Docker allows you to run apps like media servers or automation tools. It adds significant flexibility for power users who want custom services.
How much RAM does a NAS need?
Basic use requires 4GB, but 8GB or more is recommended for smooth performance with virtual machines, Docker, and media transcoding tasks.
Final Thoughts on Choosing the Best 4 Bay NAS
Our top picks include the UGREEN NAS DXP4800 GT for performance, the Asustor Drivestor 4 Gen 2 for budget buyers, and the UGREEN NAS DXP4800 Pro for power users.
Prioritize processor power, RAM capacity, and software features based on your workflow needs to ensure the right match for your data management goals.
Check current pricing and availability before purchasing to get the best deal. Technology evolves quickly, so verify the latest specs for future-proofing your setup.