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QNAP TS-855eU-RP-8G-US Review: High-Speed NAS Excellence

  • NAS
  • 13 min read
high speed nas with excellence

The QNAP TS-855eU-RP-8G-US is a high-speed NAS powerhouse, featuring an Intel Atom CPU, dual 2.5GbE ports, and 8GB DDR4 memory for efficient multitasking. Its 8-core computing power guarantees seamless handling of data-intensive tasks. The user-friendly interface simplifies setup and management, making it ideal for businesses seeking reliability and speed. With dual M.2 PCIe Gen 3 x4 NVMe SSD slots for cache acceleration and snapshot-based ransomware protection, this NAS excels in data security and performance. Businesses looking for high-speed, reliable storage will appreciate the exceptional features and benefits offered by the QNAP TS-855eU-RP-8G-US.

Key Takeaways

  • High-speed Intel Atom CPU and 8-core computing power for exceptional performance.
  • Dual-2.5GbE ports for fast data transfer speeds and efficient multitasking.
  • Snapshot-based ransomware protection and enhanced network adapter compatibility for data security.
  • Ideal for businesses needing reliable, high-speed storage with user-friendly interface.
  • Dual M.2 PCIe Gen 3 x4 NVMe SSD slots for cache acceleration and top-notch performance.

The QNAP TS-855eU-RP-8G-US is a high-performance 8-bay 2U short-depth rackmount NAS designed for demanding storage and networking requirements. It boasts high-speed performance with an Intel Atom CPU, Dual-2.5GbE ports, redundant 300W PSU, 8GB DDR4 memory, and 8-core computing power. This NAS excels in handling data-intensive tasks efficiently. Additionally, it offers a user-friendly interface, simplifying setup and management tasks for users. The combination of powerful hardware and a straightforward interface makes the QNAP TS-855eU-RP-8G-US ideal for businesses seeking a reliable and fast storage solution. With its robust features and ease of use, this NAS stands out as a top choice for those looking to enhance their storage capabilities.

Features and Benefits

The QNAP TS-855eU-RP-8G-US impresses with its fast file sharing speeds, thanks to the dual 2.5GbE ports, ensuring efficient data transfer within networks. Additionally, the NAS features dual M.2 PCIe Gen 3 x4 NVMe SSD slots for cache acceleration, enhancing overall performance. Users benefit from snapshot-based ransomware protection and the flexibility of dual PCIe Gen 3 x4 slots for expanded network adapter compatibility, making it a versatile and secure storage solution.

Fast File Sharing Speeds

Promoting efficient data transfer, the QNAP TS-855eU-RP-8G-US NAS facilitates rapid file sharing with its dual 2.5GbE ports and 8-core computing power. This high-speed storage solution guarantees peak network performance, allowing for swift data transmission across connected devices. The dual 2.5GbE ports enable accelerated file sharing, reducing transfer times and enhancing overall productivity. With the combination of Intel Atom CPU and 8GB DDR4 memory, this NAS device can handle demanding file-sharing tasks with ease. Users can experience seamless access to shared files and folders, making collaboration more efficient. Whether for business operations or personal use, the QNAP TS-855eU-RP-8G-US excels in providing fast and reliable file sharing capabilities.

Cache Acceleration Feature

Enhancing data access and storage performance, the Cache Acceleration Feature of the QNAP TS-855eU-RP-8G-US NAS optimizes data retrieval and processing speeds for increased operational efficiency. By utilizing dual M.2 PCIe Gen 3 x4 NVMe SSD slots, this feature greatly enhances cache performance, allowing for quicker access to frequently used data. This results in accelerated network optimization, enabling smoother file sharing and application performance. The Cache Acceleration Feature plays an important role in reducing latency and improving overall system responsiveness. With the ability to configure SSD caching or storage pools, users can tailor the NAS performance to suit their specific requirements, making the QNAP TS-855eU-RP-8G-US an ideal solution for demanding workloads that require high-speed data access.

Snapshot-Based Ransomware Protection Feature

Utilizing advanced snapshot technology, the Snapshot-Based Ransomware Protection Feature of the QNAP TS-855eU-RP-8G-US NAS guarantees strong data security against potential ransomware threats. This feature allows users to create multiple point-in-time snapshots of their data, providing a layer of defense against malicious encryption or deletion attempts by ransomware. In the event of a ransomware attack, users can easily restore their data to a previous snapshot, minimizing the impact of such threats on their valuable information. By offering this level of ransomware protection, the QNAP NAS safeguards the integrity and availability of critical data, enhancing overall data security for businesses and individuals alike.

Enhanced Network Adapter Compatibility

The QNAP TS-855eU-RP-8G-US NAS guarantees enhanced network adapter compatibility, providing users with expanded connectivity options and increased flexibility in configuring their network infrastructure. This enhanced compatibility guarantees seamless integration with a variety of network adapters, optimizing network performance and reducing compatibility issues. Users can leverage the dual PCIe Gen 3 x4 slots to install additional network adapters or storage cards, allowing for tailored network setups to meet specific performance requirements. By addressing compatibility concerns and offering a range of adapter options, the QNAP TS-855eU-RP-8G-US empowers users to enhance their network capabilities and achieve high-speed data transfers without compromising on stability or efficiency.

Product Quality

Incorporating cutting-edge technology and robust construction, this QNAP TS-855eU-RP-8G-US NAS device exemplifies exceptional product quality in the field of network-attached storage solutions. The product performance of this NAS is outstanding, thanks to the Intel Atom C5125 8C 2.8GHz processor, 8GB SODIMM DDR4 RAM, and dual 2.5GbE ports for accelerated file sharing. Customers consistently report high levels of satisfaction with this NAS, praising its reliability and speed. The inclusion of dual M.2 PCIe Gen 3 x4 NVMe SSD slots for cache acceleration or SSD storage pools further enhances its performance capabilities. QNAP's dedication to quality is evident in the design, functionality, and overall user experience, making this NAS a top choice for businesses seeking a high-speed and reliable storage solution.

What It's Used For

The QNAP TS-855eU-RP-8G-US serves as a versatile solution for various applications, including NAS deployment, data backup, and seamless integration into surveillance systems. With its high-speed capabilities, dual 2.5GbE ports, and dual M.2 PCIe Gen 3 x4 NVMe SSD slots, this NAS system excels in accelerating file sharing and providing cache acceleration options. Moreover, its compatibility with QNAP's Boxafe for Google Workspace and Microsoft 365 backups, along with QVR Pro for surveillance needs, makes it a robust choice for businesses seeking efficient data management and security solutions.

Applications for NAS

How can organizations leverage the QNAP TS-855eU-RP-8G-US NAS for optimizing data backups, surveillance systems, and disaster recovery strategies? This high-speed NAS device offers a range of powerful applications for various organizational needs. When it comes to NAS applications, the QNAP TS-855eU-RP-8G-US excels in data backup solutions, providing secure and efficient ways to store and manage critical data. With features like Boxafe for backing up Google Workspace and Microsoft 365 accounts, organizations can guarantee data integrity and availability. Additionally, the NAS device offers a robust surveillance solution through QVR Pro, enabling seamless monitoring and management of surveillance systems. Furthermore, the device supports disaster recovery plans by integrating ransomware protection using QNAP's storage snapshot solution, ensuring data safety and continuity.

Data Backup Solutions

Organizations can leverage the QNAP TS-855eU-RP-8G-US NAS for efficient and secure data backup solutions to guarantee the integrity and availability of critical information. The NAS provides robust data security measures, ensuring that backups are protected from unauthorized access or data breaches. With cloud integration capabilities, users can easily replicate data to cloud storage services for an extensive backup strategy that combines on-premises storage with cloud resources, enhancing data protection and resilience against potential threats or system failures. The seamless integration of cloud services enhances flexibility and accessibility to backed-up data, making it an ideal solution for businesses seeking reliable and scalable backup options.

Surveillance System Integration

Enhancing security measures through seamless integration, the QNAP TS-855eU-RP-8G-US NAS facilitates robust surveillance system integration for thorough monitoring and data protection. With its advanced features, the NAS guarantees seamless compatibility with various surveillance systems, enabling users to effortlessly set up and manage surveillance cameras for enhanced security. The system compatibility of the QNAP NAS allows for easy integration with popular surveillance software like QVR Pro, providing a complete surveillance solution. This integration empowers users to monitor their premises effectively, store surveillance footage securely on the NAS, and access recordings conveniently when needed. By leveraging the surveillance integration capabilities of the QNAP TS-855eU-RP-8G-US, users can strengthen their security infrastructure and safeguard their valuable data with confidence.

Product Specifications

Detailing the technical specifications of the QNAP TS-855eU-RP-8G-US NAS, this detailed breakdown provides insights into its hardware and capabilities. The NAS features an Intel Atom C5125 8C 2.8GHz processor and 8GB SODIMM DDR4 RAM, ensuring robust product performance. With dual 2.5GbE ports for accelerated file sharing, dual M.2 PCIe Gen 3 x4 NVMe SSD slots, and dual PCIe Gen 3 x4 slots for additional network adapters or storage cards, this NAS offers high-speed storage capacity and flexibility. Below is a table summarizing key technical details of the QNAP TS-855eU-RP-8G-US NAS:

ProcessorIntel Atom C5125 8C 2.8GHz
Network PortsDual 2.5GbE
Storage SlotsDual M.2 PCIe Gen 3 x4 NVMe, Dual PCIe Gen 3 x4
WarrantyManufacturer's warranty information

Who Needs This

Is this high-speed, high-capacity NAS suitable for businesses seeking robust storage solutions with advanced networking capabilities? The QNAP TS-855eU-RP-8G-US is ideal for potential customers looking for a reliable storage solution with lightning-fast file sharing speeds, support for extensive surveillance systems, and advanced disaster recovery features. Industries served by this NAS include but are not limited to IT companies, healthcare facilities, video production studios, and small to medium-sized businesses requiring secure and efficient data management. With its Intel Atom CPU, dual 2.5GbE ports, and dual M.2 PCIe Gen 3 x4 NVMe SSD slots, this NAS caters to organizations that demand high-performance computing power, data redundancy, and seamless network integration for their operations.


The QNAP TS-855eU-RP-8G-US impresses with its extensive feature set tailored for businesses requiring high-speed file sharing, thorough surveillance capabilities, and advanced disaster recovery options. Key pros of this NAS include:

  1. Speed Performance: The Intel Atom C5125 8C 2.8GHz processor and dual 2.5GbE ports guarantee accelerated file sharing, while dual M.2 PCIe Gen 3 x4 NVMe SSD slots offer cache acceleration options.
  2. Storage Capacity: With 8 bays supporting 3.5-inch SATA hard drives or 2.5-inch SSDs, this NAS provides ample storage space for businesses with demanding data needs.
  3. Scalability: Dual PCIe Gen 3 x4 slots allow for additional network adapters or storage cards, enabling users to expand and customize their NAS setup efficiently.


Highlighting potential drawbacks, the QNAP TS-855eU-RP-8G-US may present challenges in certain areas that warrant consideration. Some drawbacks to be aware of include:

  1. Limited Performance: While the NAS offers impressive features, some users may find the performance lacking in high-demand scenarios due to the Intel Atom CPU and 8GB RAM combination.
  2. High Price Point: The initial investment required for the QNAP TS-855eU-RP-8G-US may be a deterrent for budget-conscious buyers, especially considering the additional cost of hard drives and any necessary upgrades.
  3. Complex Setup: Setting up and configuring this NAS may prove to be challenging for users who are not well-versed in network storage solutions, potentially leading to performance issues if not properly configured.

What Customers Are Saying

Upon analyzing customer feedback on the QNAP TS-855eU-RP-8G-US, a consistent theme emerges regarding its performance and usability in various network storage environments. Customer testimonials highlight the impressive performance benchmarks achieved by this NAS, with many users praising its high-speed data transfer capabilities facilitated by the Dual 2.5GbE ports and Intel Atom CPU. Users also appreciate the reliability of the Redundant 300W PSU and the efficiency of the 8-core computing power, as evidenced by positive reviews emphasizing smooth operation even under heavy workloads. Overall, customers are satisfied with the QNAP TS-855eU-RP-8G-US for its robust performance and versatility in handling diverse storage tasks within enterprise settings.

Overall Value

When evaluating the QNAP TS-855eU-RP-8G-US, its overall value proposition lies in its exceptional performance capabilities and versatile functionality across various enterprise storage requirements. The NAS device delivers outstanding overall performance, thanks to the Intel Atom C5125 8C 2.8GHz processor and 8GB SODIMM DDR4 RAM. Its dual 2.5GbE ports guarantee accelerated file sharing, while the dual M.2 PCIe Gen 3 x4 NVMe SSD slots offer cache acceleration or SSD storage pools. Additionally, the dual PCIe Gen 3 x4 slots accommodate additional network adapters or storage cards, enhancing its versatility. When considering price comparison, the QNAP TS-855eU-RP-8G-US stands out for its competitive pricing given its robust features and capabilities, making it a cost-effective solution for demanding storage needs.

Tips and Tricks For Best Results

To optimize performance and achieve the best results when utilizing the QNAP TS-855eU-RP-8G-US NAS device, consider implementing advanced configuration settings tailored to your specific storage requirements. Best practices involve setting up regular data backups using QNAP's snapshot solution for disaster recovery. Utilize the dual 2.5GbE ports for accelerated file sharing and enable RAID configurations for data redundancy. Troubleshooting techniques include monitoring system performance regularly, checking for firmware updates, and ensuring proper ventilation to prevent overheating. Additionally, make use of the dual M.2 PCIe Gen 3 x4 NVMe SSD slots for cache acceleration or SSD storage pools, and explore the possibilities offered by the dual PCIe Gen 3 x4 slots for additional network adapters or storage cards to further enhance the NAS functionality.


In summarizing the features and performance capabilities of the QNAP TS-855eU-RP-8G-US NAS device, it becomes evident that this high-speed 2U short-depth rackmount solution offers a versatile and efficient storage solution for diverse networking needs. The NAS excels in high-speed performance with its Intel Atom C5125 8-core processor, 8GB DDR4 memory, and dual 2.5GbE ports for accelerated file sharing. Data security is a top priority, highlighted by features such as Boxafe for backing up Google Workspace and Microsoft 365 accounts, QVR Pro for advanced surveillance, and QNAP's storage snapshot solution for ransomware protection. With the capability for dual M.2 PCIe Gen 3 x4 NVMe SSD slots and dual PCIe Gen 3 x4 slots, the QNAP TS-855eU-RP-8G-US NAS ensures top-notch performance and flexibility for various networking environments.

Frequently Asked Questions

Can This NAS Be Rack-Mounted in a Standard 19-Inch Server Rack?

The QNAP TS-855eU-RP-8G-US NAS is designed for rack mounting in a standard 19-inch server rack. Its 2U short-depth form factor offers flexible installation options, ensuring compatibility with existing server infrastructure for streamlined deployment.

What Is the Maximum Storage Capacity Supported by This Nas?

The QNAP TS-855eU-RP-8G-US NAS supports a maximum storage capacity of 80TB, ensuring high performance and scalability for data management needs. Its robust data handling capabilities make it suitable for diverse storage requirements in professional settings.

Is It Possible to Expand the RAM Beyond the Included 8gb?

Performance upgrades on the QNAP TS-855eU-RP-8G-US may include expanding RAM beyond the provided 8GB. Check compatibility options with the product specifications to determine the maximum supported RAM capacity and guarantee seamless performance enhancement.

Are the M.2 PCIE Slots Compatible With NVME SSDS Only?

The M.2 PCIe slots on the QNAP TS-855eU-RP-8G-US support NVMe SSDs exclusively for peak performance. This NAS offers high-speed storage options with compatibility for NVMe SSDs, enhancing data access speeds and overall system responsiveness.

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

Hot swapping benefits the QNAP TS-855eU-RP-8G-US NAS by allowing easy maintenance without system downtime. This feature guarantees continuous operation and data protection by enabling the replacement of failed drives on-the-fly, enhancing system reliability.

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