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QNAP TS-1655-8G-US Review: Powerful Hybrid NAS Solution

  • NAS
  • 13 min read
high performance hybrid nas system

The QNAP TS-1655-8G-US offers a robust hybrid NAS solution with an Intel Atom C-5125 8-core processor for enhanced performance. It combines SSD speed and traditional hard drives for a balanced mix between speed and capacity. The dual M.2 NVMe PCIe Gen 3 slots improve read and write speeds, ideal for demanding workloads. This NAS is suitable for IT professionals, content creators, and small to medium-sized businesses prioritizing performance and reliability. With customizable storage configurations and ample space, it caters to those in need of superior processing power and storage flexibility. Discover more about its features and customer feedback for a comprehensive understanding.

Key Takeaways

  • Intel Atom C-5125 processor for robust performance.
  • Dual M.2 NVMe PCIe Gen 3 slots for SSD cache acceleration.
  • Up to 128GB RAM with ECC for efficient data handling.
  • Ideal for IT pros, content creators, and SMBs.
  • Balances speed and capacity for superior performance.

The QNAP TS-1655-8G-US, equipped with an Intel Atom C-5125 8-core processor, offers exceptional processing power for handling intensive workloads efficiently. When delving into hybrid storage solutions, this NAS device stands out by combining the benefits of both hard drives and SSDs for peak performance optimization. By utilizing both storage mediums effectively, users can capitalize on the speed of SSDs for frequently accessed data while leveraging the capacity of traditional hard drives for cost-efficient storage. This hybrid approach guarantees a balance between speed and capacity, catering to diverse storage needs. Additionally, the QNAP TS-1655-8G-US's robust hardware and software integration facilitate seamless data management, making it a reliable choice for users seeking performance and storage flexibility.

Features and Benefits

The QNAP TS-1655-8G-US offers versatile features that cater to enhanced performance, such as SSD cache acceleration slots for improved data access speeds. Users can benefit from the M.2 expansion card compatibility, allowing for further customization and system responsiveness. The coral color scheme integration not only adds a touch of style but also aligns with QNAP's focus on aesthetic design alongside functionality.

SSD Cache Acceleration Slots

With the inclusion of dual M.2 NVMe PCIe Gen 3 slots, the QNAP TS-1655-8G-US offers enhanced SSD cache acceleration capabilities for improved system performance. These slots enable SSD cache optimization, enhancing hybrid storage performance by allowing frequently accessed data to be stored on high-speed SSDs for quicker retrieval. By utilizing SSD cache, the NAS can greatly enhance read and write speeds, reducing latency and improving overall system responsiveness. This feature is particularly beneficial for users dealing with demanding workloads or applications that require quick data access. The inclusion of dual M.2 NVMe PCIe Gen 3 slots in the QNAP TS-1655-8G-US provides a versatile and efficient solution for maximizing storage performance in a hybrid storage environment.

SSD Cache Acceleration Performance

Enhancing storage performance through SSD cache acceleration, the QNAP TS-1655-8G-US offers advanced features and benefits for optimizing system responsiveness and data access speeds. By utilizing SSD cache acceleration, users can experience significant improvements in SSD performance, particularly in scenarios where frequently accessed data is stored in the cache for quicker retrieval. This hybrid storage solution combines the speed of SSDs with the capacity of traditional hard drives, striking a balance between performance and affordability. The SSD cache acceleration feature guarantees that data-intensive tasks are processed efficiently, reducing latency and enhancing overall system performance. With the QNAP TS-1655-8G-US, users can harness the power of SSD technology to achieve seamless data access and enhanced system responsiveness in a cost-effective manner.

M.2 Expansion Card Compatibility

Building upon the SSD cache acceleration performance of the QNAP TS-1655-8G-US, the compatibility of M.2 expansion cards offers additional features and benefits for enhancing storage capabilities and system efficiency. The M.2 expansion card performance is instrumental in providing faster data transfer speeds and improved overall system responsiveness. Users can install compatible M.2 NVMe PCIe Gen 3 SSDs into the dual slots, expanding storage options and boosting read/write speeds. Troubleshooting compatibility issues with M.2 expansion cards may arise, requiring careful consideration of factors such as firmware updates, proper slot utilization, and ensuring compatibility with the specific model of the NAS. By utilizing M.2 expansion cards effectively, users can maximize the NAS's performance and storage capabilities.

Coral Color Scheme Integration

The incorporation of the Coral color scheme into the design of the QNAP TS-1655-8G-US NAS device offers a visually distinctive and aesthetically pleasing feature that sets it apart from traditional storage solutions. The design aesthetics of the Coral color scheme bring a fresh and modern look to the device, enhancing its overall appeal. This color customization allows users to personalize their NAS setup, adding a touch of style to their storage solution. By integrating the Coral color scheme, QNAP has not only prioritized functionality but also considered the importance of visual appeal, catering to users who value both performance and design in their NAS systems.

Product Quality

With a focus on intricate technical specifications and robust build, the QNAP TS-1655-8G-US demonstrates a commitment to product quality through its attention to detail and performance capabilities. The Intel Atom C-5125 8-core processor, 8GB UDIMM DDR4 RAM (upgradeable to 128GB with ECC support), and various storage options enable high product performance. Despite some customer feedback mentioning challenges with hardware upgrades and ZFS compatibility, overall customer satisfaction is notable, particularly regarding data handling and system stability. The inclusion of features like dual M.2 NVMe PCIe Gen 3 slots for SSD cache acceleration and error-correcting code memory support further enhances the product quality and user experience, making it a reliable hybrid NAS solution for diverse storage needs.

What It's Used For

The QNAP TS-1655-8G-US is primarily utilized for handling NAS workloads efficiently due to its powerful Intel Atom C-5125 8-core processor and ample memory capacity. Users have found value in installing additional M.2 expansion cards to enhance the system's overall responsiveness and performance. However, challenges have been reported regarding ZFS compatibility, which may impact the user experience for those requiring specific file system capabilities.

NAS Workload Handling

When considering Network Attached Storage (NAS) workload handling, it serves as a robust solution for managing and storing data in various environments. NAS systems excel in data management efficiency, guaranteeing that information is organized and accessible. They provide system stability, ensuring that data remains secure and available when needed. Additionally, NAS devices offer performance optimization, allowing for efficient data transfers and quick access to stored files. The hardware compatibility of NAS systems ensures seamless integration with different components, enabling users to expand storage capacity or enhance performance through upgrades. Overall, NAS devices are versatile tools that effectively handle workloads, making them indispensable in both professional and personal settings.

M.2 Expansion Card

Utilizing an M.2 expansion card enhances the storage and performance capabilities of NAS systems by providing additional SSD cache acceleration and compatibility with various adapters for customization and optimization. The installation process for an M.2 expansion card involves inserting it into an available PCIe slot on the NAS system, ensuring compatibility with the device. Once installed, performance benchmarks can showcase improvements in read/write speeds, reducing latency, and enhancing overall system responsiveness. By adding an M.2 expansion card, users can effectively boost the NAS system's efficiency, especially in handling demanding workloads or applications that require fast data access. This upgrade option allows for greater flexibility and scalability, enabling users to tailor their NAS setup to meet specific performance requirements.

ZFS Compatibility Challenges

Challenges related to ZFS compatibility in NAS systems can greatly impact their functionality and data management capabilities. Troubleshooting ZFS compatibility issues is essential for ensuring top performance and stability. Users may encounter challenges with hardware upgrades and booting when integrating ZFS into their NAS setup. To overcome these hurdles, performance optimization techniques such as adjusting cache settings and fine-tuning storage configurations can be employed. Additionally, seeking technical support from knowledgeable sources can aid in resolving ZFS compatibility issues effectively. By addressing these compatibility challenges proactively, users can harness the full potential of ZFS technology within their NAS system, enhancing data reliability and storage efficiency.

Product Specifications

Featuring an Intel Atom C-5125 8-core processor and 8GB UDIMM DDR4 RAM, the QNAP TS-1655-8G-US offers exceptional product performance and system stability. The NAS boasts a range of impressive specifications that contribute to its overall functionality:

SpecificationsDetailsAdditional Information
ProcessorIntel Atom C-5125 8-core
RAM8GB UDIMM DDR4, upgradable to 128GB with ECC
Drive Compatibility12 x 3.5' + 4 x 2.5' SATA 6Gb/s, 3Gb/s
Network ConnectivityDual 2.5GbE RJ45Accelerated file access
Storage AccelerationDual M.2 NVMe PCIe Gen 3 slotsSSD cache acceleration
Expansion SlotsThree PCIe slotsVarious adapters supported
Memory SupportError-Correcting CodeEnsures data integrity
CompatibilityCoral M.2 acceleratorEnhanced performance

Who Needs This

For professionals seeking extensive data management capabilities and high-performance storage solutions, the QNAP TS-1655-8G-US NAS device offers a versatile platform that excels in handling diverse workloads and ensuring system stability. Target audience analysis indicates that IT professionals, content creators, small to medium-sized businesses, and creative teams requiring robust data storage and efficient file access will benefit from this hybrid NAS solution. Performance comparison with similar products highlights the TS-1655-8G-US's superior processing power, memory capacity, and storage flexibility, making it ideal for users with demanding data processing requirements. Whether for data-intensive projects, virtualization environments, or multimedia content creation, this NAS device caters to users who prioritize performance, reliability, and scalability in their storage solutions.


Demonstrating robust performance capabilities and versatile storage solutions, the QNAP TS-1655-8G-US NAS device stands out for its exceptional processing power, memory expandability, and storage flexibility. The device excels in:

  • SSD Performance: The inclusion of dual M.2 NVMe PCIe Gen 3 slots allows for SSD cache acceleration, enhancing overall system speed and responsiveness.
  • Technical Support Issues: Despite reported technical support challenges by some users, the device's robust hardware and software capabilities mitigate the impact of such issues, ensuring efficient operation.
  • Storage Flexibility: With 12 x 3.5-inch and 4 x 2.5-inch SATA drive bays, users can customize storage configurations to suit their specific needs, providing ample space for data storage and backup.


Though occasionally overshadowed by its impressive performance capabilities, the QNAP TS-1655-8G-US NAS device exhibits some notable drawbacks that warrant consideration. While it offers robust features, users have reported issues related to ZFS compatibility and challenges with hardware upgrades. Specifically, the NAS device has faced criticism for its limitations in working seamlessly with ZFS file systems, impacting data management efficiency. Additionally, users have encountered difficulties when attempting hardware upgrades, particularly when trying to boot with NVMe drives. These drawbacks highlight areas where the QNAP TS-1655-8G-US could benefit from further improvements to enhance user experience and overall performance.

  • Limited ZFS compatibility affecting data management
  • Challenges with hardware upgrades, especially booting with NVMe drives
  • Potential need for improvements in user experience and performance

What Customers Are Saying

Customers have expressed varying opinions and experiences with the QNAP TS-1655-8G-US NAS device, shedding light on its performance and usability. While some users have reported positive experiences with data handling and system stability, others have encountered challenges with ZFS compatibility and technical support. Customer satisfaction appears to be mixed due to issues with hardware upgrades and booting with NVMe drives. Technical support problems have been highlighted, indicating a need for improvement in this area. Despite these concerns, users have found the NAS device capable of handling workloads efficiently. Some have suggested installing an additional M.2 expansion card to enhance OS responsiveness. Overall, customer feedback provides valuable insights into the device's strengths and areas for improvement.

Overall Value

The evaluation of the QNAP TS-1655-8G-US NAS device's overall value encompasses an in-depth analysis of its features and performance against its price point. When considering the overall performance of this device, it is evident that the Intel Atom C-5125 8-core processor and the 8GB UDIMM DDR4 RAM contribute greatly to its efficient data handling capabilities. Customer satisfaction with the device's data handling and system stability is notable, although some users have encountered challenges with ZFS compatibility and technical support. Despite these issues, the inclusion of features such as dual M.2 NVMe PCIe Gen 3 slots for SSD cache acceleration adds considerable value to the device. Ultimately, the QNAP TS-1655-8G-US offers a robust hybrid NAS solution that balances performance with customer satisfaction.

Tips and Tricks For Best Results

To achieve peak performance and efficiency with the QNAP TS-1655-8G-US NAS device, implementing strategic configurations and maintenance routines can enhance overall functionality. For storage optimization, consider utilizing the dual M.2 NVMe PCIe Gen 3 slots for SSD cache acceleration, maximizing data access speeds. Additionally, make sure that the hard drives are configured in RAID for data redundancy and improved performance. Regularly monitoring drive health using SMART tools can help preemptively address potential issues. When troubleshooting, utilize QNAP's diagnostic tools and community forums for guidance on resolving any technical issues promptly. Keep the firmware updated to access the latest features and security patches. By following these tips and tricks, users can make the most of their NAS device's capabilities.


In summarizing the collective insights and performance evaluations of the QNAP TS-1655-8G-US NAS device, it becomes evident that strategic configurations and maintenance routines play a pivotal role in optimizing its functionality and enhancing user experience. The device's Intel Atom C-5125 8-core processor, 8GB UDIMM DDR4 RAM (upgradable to 128GB with ECC support), and multiple drive bays offer significant potential for storage and processing capabilities. When compared to other NAS solutions, the TS-1655-8G-US stands out for its dual 2.5GbE RJ45 ports, M.2 NVMe PCIe Gen 3 slots for SSD cache acceleration, and versatile PCIe slots for various adapters. While users have reported positive experiences with data handling and system stability, challenges with ZFS compatibility and hardware upgrades highlight areas for potential improvement. Overall, the QNAP TS-1655-8G-US offers a robust hybrid NAS solution with notable performance features.

Frequently Asked Questions

Can the QNAP Ts-1655-8g-Us NAS Handle Virtualization Tasks Effectively?

The QNAP TS-1655-8G-US NAS can effectively handle virtualization tasks due to its Intel Atom C-5125 8-core processor, 8GB UDIMM DDR4 RAM (upgradable to 128GB with ECC support), and error-correcting code memory support, ensuring excellent virtualization performance and scalability.

Is It Possible to Expand the RAM Beyond the Stated 128GB With ECC Support?

Maximize the full potential of your system by expanding RAM beyond the 128GB limit with ECC support. Enhance performance benefits, boost multitasking capabilities, and elevate operational efficiency. Maximize your NAS experience with advanced memory configurations for best results.

What Are the Recommended SSD Models for Optimal Performance as Cache Accelerators?

For peak performance as cache accelerators in QNAP TS-1655-8G-US, suggested SSD models include NVMe PCIe Gen 3 drives like Samsung 970 EVO, WD Black SN750, and Crucial P1. Confirm compatibility and installation adherence for improved NAS functionality.

How Challenging Is It to Set up and Configure the Coral M.2 Accelerator?

Setting up and configuring the Coral M.2 accelerator can be moderately challenging due to specific requirements for best performance. Compatibility testing is vital for seamless integration. Proper installation procedures are essential for maximizing performance benefits.

Are There Any Known Compatibility Issues With Specific PCIE Adapters for This NAS Model?

When considering PCIe adapter compatibility for the QNAP TS-1655-8G-US NAS, troubleshooting potential issues is essential. Verify hardware limitations and compatibility to achieve peak performance. Addressing these factors proactively can help mitigate challenges and enhance system functionality.

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