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BUFFALO TeraStation 3420DN Review: Reliable Storage Solution

  • NAS
  • 12 min read
highly reliable terastation review

I find the BUFFALO TeraStation 3420DN an excellent choice for secure storage needs. Its 16TB capacity, 256-bit AES encryption, and 2.5GbE port guarantee efficient data protection and transfer. The cloud integration adds scalability and redundancy. This device caters proficiently to businesses and individuals seeking dependable storage solutions. The product's reliability, remote access, and robust data replication provide a solid foundation for secure data management. Its pros include enhanced data redundancy and seamless cloud compatibility. While it offers superb features, the review hints at limited expandability and setup complexity. It's a suitable option for those valuing security and reliability in their storage solutions.

Key Takeaways

  • 16TB capacity with NAS-grade hard drives for reliable storage.
  • Enhanced data protection with 256-bit AES encryption.
  • Seamless remote access for secure data management.
  • Efficient data replication and redundancy for peak performance.
  • Cloud integration for scalable and secure backup options.

In examining the hardware specifications of the BUFFALO TeraStation 3420DN, the 16TB capacity and 4 pre-tested NAS-grade hard drives stand out as key components for robust data storage solutions. When analyzing data transfer speeds, the TeraStation 3420DN excels with a native 2.5GbE port, enabling rapid access to stored data. This feature guarantees efficient data transfer rates, essential for users dealing with large files or databases. Additionally, the network connectivity options provided by this NAS device further enhance its functionality, allowing seamless integration into existing network infrastructures. The combination of high-capacity storage, fast data transfer speeds, and versatile network connectivity makes the TeraStation 3420DN a reliable choice for businesses and individuals seeking secure and efficient data storage solutions.

Features and Benefits

The BUFFALO TeraStation 3420DN offers robust data encryption capabilities, ensuring secure storage and protection against cyber threats. Its remote access capability allows users to access their data from anywhere, enhancing flexibility and productivity. Additionally, the NAS device features advanced data replication capabilities and cloud integration, providing users with versatile and scalable storage solutions.

Data Encryption Capability

Utilizing 256-bit AES encryption, the BUFFALO TeraStation 3420DN guarantees robust data security, safeguarding sensitive information stored on the device from potential cyber threats. This encryption standard ensures high levels of data protection, making it notably harder for unauthorized users to access confidential files. By implementing such advanced encryption measures, the TeraStation 3420DN enhances network security, providing peace of mind to users concerned about the safety of their data. This feature is essential for preventing data breaches and maintaining the integrity of stored information. With 256-bit AES encryption, the TeraStation 3420DN offers a complete solution for securing data, making it a reliable choice for businesses and individuals prioritizing data protection.

Remote Access Capability

Enhancing the TeraStation 3420DN's functionality, its remote access capability offers seamless and secure access to stored data from anywhere. The remote access setup is straightforward, allowing users to access files remotely with ease. Additionally, the TeraStation 3420DN guarantees network performance optimization, enabling efficient data transfers and access speeds even when accessing files remotely. This feature enhances productivity by providing quick and secure access to important data, whether in the office or on the go. With the TeraStation 3420DN's remote access capability, users can efficiently manage and retrieve their stored data, making it a valuable asset for businesses needing reliable remote access to their files.

Enhanced Data Replication Feature

Employing advanced data replication capabilities, this feature on the TeraStation 3420DN enhances data redundancy and integrity for peak storage performance. By utilizing advanced technology, the TeraStation 3420DN guarantees improved efficiency in data replication processes, leading to enhanced data protection and reliability. This feature allows for the seamless duplication of data across multiple drives, reducing the risk of data loss and guaranteeing data availability in case of hardware failure. With its advanced technology, the TeraStation 3420DN facilitates efficient replication of critical data, providing users with a secure and robust storage solution. The enhanced data replication feature not only increases data integrity but also contributes to the overall performance and reliability of the storage system.

Cloud Integration Benefit

Moving from the discussion on enhanced data replication capabilities, the integration of cloud services in the BUFFALO TeraStation 3420DN brings added scalability and security to its storage solutions. Cloud backup options like Amazon S3, Dropbox, Azure, and OneDrive enhance data protection by providing redundant storage locations. This feature guarantees that critical files are safeguarded against local hardware failures or disasters. By utilizing cloud integration, users can easily sync and access their data from multiple platforms, increasing flexibility and reducing the risk of data loss. Additionally, cloud services offer scalability, allowing users to expand their storage capacity without the need for additional physical hardware. Overall, the inclusion of cloud integration in the TeraStation 3420DN enhances its data protection capabilities and provides peace of mind for users.

Product Quality

The BUFFALO TeraStation 3420DN exemplifies exceptional reliability and durability in its product quality, providing users with a robust storage solution for their important files. Through rigorous reliability testing and performance analysis, this NAS device has proven its ability to maintain data integrity and accessibility even under demanding conditions. The TeraStation 3420DN's high-quality components and design guarantee consistent performance, making it a dependable choice for businesses and individuals seeking secure data storage. Its sturdy build quality and efficient operation contribute to a positive user experience, where reliability is a key factor in entrusting valuable data to this device. Overall, the TeraStation 3420DN stands out for its product quality, offering users peace of mind when it comes to storing and protecting their critical files.

What It's Used For

The BUFFALO TeraStation 3420DN serves as a versatile tool for file storage, offering 16TB capacity and multiple RAID configurations for data redundancy. Its robust data security features, including 256-bit encryption and a closed system, guarantee the protection of sensitive information. Additionally, the NAS's cloud integration capabilities provide users with added flexibility and scalability in managing their data securely.

Functionality for File Storage

In a professional setting, the BUFFALO TeraStation 3420DN serves as a robust solution for organizing, storing, and securing critical files with its 16TB capacity and versatile RAID configuration options. The functionality analysis reveals that this NAS device optimizes storage by offering RAID 5, RAID 6, and RAID 0 configurations, allowing users to balance between redundancy and capacity based on their specific needs. With storage optimization in mind, the TeraStation 3420DN caters to environments with 10-30 users, providing a secure data storage solution with professional security features. Its closed system and 256-bit AES encryption guarantee data protection against potential cyber threats, making it a reliable choice for businesses seeking efficient file storage and backup solutions.

Data Security Features

By implementing advanced encryption protocols and a closed system, the BUFFALO TeraStation 3420DN guarantees robust data security measures to safeguard critical files against potential cyber threats. The 256-bit AES encryption ensures that data remains protected both at rest and during transmission. Moreover, the closed system architecture restricts unauthorized access, bolstering overall data security. For remote access, the TeraStation 3420DN provides secure options to access files from anywhere while preserving data integrity. This functionality allows users to work efficiently without compromising sensitive information. By prioritizing data security through encryption and controlled access, the TeraStation 3420DN offers peace of mind for users managing important files.

Cloud Integration Benefits

Integrating cloud services with the BUFFALO TeraStation 3420DN enhances data accessibility and scalability for users managing critical files. By syncing with platforms like Amazon S3, Dropbox, Azure, and OneDrive, the NAS offers significant benefits. Cloud integration provides additional security layers through off-site backups, protecting against data loss in case of hardware failure or disasters. Additionally, it enables seamless file sharing and collaboration across multiple devices and locations, enhancing productivity. The flexibility of accessing files remotely guarantees that users can work efficiently from anywhere, increasing workflow efficiency. Overall, the advantages of cloud integration with the TeraStation 3420DN include enhanced data protection, improved collaboration, and increased accessibility for users seeking reliable storage solutions.

Product Specifications

The BUFFALO TeraStation 3420DN is equipped with 16TB of storage capacity and comes with 4 pre-tested, NAS-grade hard drives included for peak performance. The setup process for this NAS device is straightforward, ensuring quick deployment for users. When it comes to product performance, the TeraStation 3420DN delivers reliable and efficient operation, meeting the needs of small businesses and personal users alike. Below is a table summarizing key specifications of the BUFFALO TeraStation 3420DN:

Hard Drive Capacity16TB (4x4TB)
InterfaceSerial ATA-600
Supported PlatformsPC and Mac

These specifications emphasize the device's robust storage capabilities and compatibility with various systems, contributing to its overall appeal for users seeking a dependable storage solution.

Who Needs This

For individuals and businesses seeking a secure and efficient storage solution with flexible configuration options, the BUFFALO TeraStation 3420DN offers a reliable choice that prioritizes data protection and ease of use. Small businesses looking for a cost-effective yet professional-grade network attached storage device will benefit from the TeraStation 3420DN's robust features like 256-bit drive encryption and RAID configurations. Home users seeking a centralized storage solution for their personal files will appreciate the ease of setup and cloud integration provided by this NAS device. With its 16TB capacity, native 2.5GbE port, and 3-year warranty, the TeraStation 3420DN caters to the needs of small businesses and home users looking for secure, reliable, and scalable storage options.


In my experience, the BUFFALO TeraStation 3420DN excels in its robust data protection features and efficient storage configurations. When considering the pros of this NAS device, these standout features come to mind:

  1. Enhanced Data Replication: The TeraStation 3420DN offers advanced data replication capabilities, ensuring data redundancy and protection against potential losses.
  2. Remote Access Capability: With remote access functionality, users can securely access and manage their stored data from anywhere, enhancing flexibility and productivity.
  3. Cloud Integration: Seamless integration with popular cloud services like Amazon S3 and Dropbox provides additional layers of data security and scalability.
  4. Reliable Performance: The TeraStation 3420DN delivers consistent and reliable performance, making it a dependable storage solution for both small businesses and personal use.


Considering the robust data protection and efficient storage configurations of the BUFFALO TeraStation 3420DN, it is essential to address potential drawbacks that users may encounter.

  1. Challenges:
  • Limited expandability options beyond the initial 16TB capacity.
  • The device may be considered pricier compared to some competitors.
  • Setup complexity might pose difficulties for users unfamiliar with NAS systems.
  • Lack of hot-swappable drives could be a concern for businesses requiring continuous uptime.

These challenges could prompt users to explore alternatives in the market that offer greater scalability, competitive pricing, simpler setup processes, or hot-swappable drive options for uninterrupted operation.

What Customers Are Saying

Users across various industries have consistently praised the reliability and performance of the BUFFALO TeraStation 3420DN for their storage needs. Customer satisfaction is high, with many highlighting the device's robust build quality and efficient data access. User experience feedback emphasizes the ease of setup and the device's reliability once operational. While some users initially found the setup challenging, they ultimately found it rewarding. The TeraStation 3420DN is recommended for its speed, ease of setup, and overall performance, making it a popular choice for those seeking redundancy in storage solutions. Overall, customers appreciate the value and quality offered by the TeraStation 3420DN, making it a reliable storage solution for small businesses and personal file storage needs.

Overall Value

The BUFFALO TeraStation 3420DN provides exceptional value with its robust features and reliable performance for storage solutions. In evaluating its value, user satisfaction plays a vital role, and based on feedback, customers find this NAS device cost-effective and efficient for small business and personal use. The inclusion of NAS-grade hard drives, native 2.5GbE port, and cloud integration enhances its overall value proposition. Users appreciate the ease of setup, fast data access, and the device's robust build quality, contributing to high user satisfaction levels. The TeraStation 3420DN's ability to offer various RAID configurations, data protection features, and cloud syncing capabilities further solidify its value as a reliable storage solution.

Tips and Tricks For Best Results

To optimize the performance of the BUFFALO TeraStation 3420DN, implementing specific configuration settings and maintenance routines can greatly enhance its efficiency and reliability. Best practices include regularly updating firmware to guarantee security and performance enhancements. Utilizing RAID configurations like RAID 5 or RAID 6 can provide both redundancy and performance benefits. Monitoring disk usage and regularly cleaning up unnecessary files can help maintain peak storage capacity. Troubleshooting tips involve regularly checking system logs for any errors or warnings, which can indicate potential issues before they escalate. Additionally, ensuring proper ventilation and temperature control in the storage environment can prevent overheating and hardware malfunctions, ultimately contributing to the longevity and stability of the TeraStation.


Concluding this review, the BUFFALO TeraStation 3420DN emerges as a robust and reliable storage solution with extensive features tailored for professional data management needs. Its reliability assessment is high, evident from user satisfaction and positive feedback on performance and build quality. The device offers a secure and efficient setup, making it ideal for small businesses and personal use where data protection is paramount. With various configuration options, cloud integration capabilities, and robust data security features, the TeraStation 3420DN provides a complete storage solution for users looking for redundancy and scalability. Overall, its ease of setup, speed, and reliability make it a commendable choice for those seeking a dependable storage solution in a professional setting.

Frequently Asked Questions

Does the Terastation 3420DN Support Remote Access for File Retrieval?

Yes, the TeraStation 3420DN guarantees remote access for file retrieval. With cloud integration, users can troubleshoot remotely and securely access files from anywhere. Its professional-grade design guarantees efficient and reliable remote troubleshooting capabilities.

Can the RAID Configuration Be Changed After Initial Setup?

Absolutely, changing the RAID configuration on the TeraStation 3420DN is possible after the initial setup. It involves data migration and reconfiguration steps to adjust the redundancy level or capacity as needed, providing flexibility for evolving storage requirements.

Is the Terastation 3420DN Compatible With Third-Party Backup Software?

Yes, the TeraStation 3420DN is compatible with third-party backup software, allowing seamless integration for enhanced data protection. This feature expands the device's versatility, providing users with flexibility in choosing backup solutions.

Does the NAS Support Hot-Swappable Hard Drives for Easy Maintenance?

Absolutely, the NAS supports hot-swappable drives, offering convenient maintenance benefits. Swapping drives on-the-fly allows for continuous operation without downtime. It's a great feature for ensuring data accessibility and system reliability.

What Kind of Network Security Features Does the Terastation 3420DN Offer?

The TeraStation 3420DN provides robust network security features, including 256-bit AES data encryption and a closed system to safeguard data. These features guarantee secure data storage and protection against cyber threats, enhancing the NAS's reliability.

Disclosure: As an Amazon Associate, I earn from qualifying purchases.

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