Overview

The QNAP TS-664-8G-US NAS is a versatile 6-bay desktop solution designed to handle demanding storage tasks. With an Intel Celeron N5105/N5095 quad-core processor and 8GB DDR4 RAM, this NAS delivers stable performance for both home and small office setups. Its dual 2.5GbE network ports provide fast file transfer speeds, while the diskless design allows flexible drive choices. Compact and unobtrusive, this desktop NAS fits easily on a desk or shelf. Users can rely on it for centralized storage without complex installation, benefiting from a balance of speed, capacity, and reliable connectivity in a single, efficient package suitable for a wide range of tasks.

Features & Benefits

This NAS offers several features that enhance productivity and data management. Dual M.2 PCIe slots support SSD caching or storage pools, improving overall system responsiveness. Multiple USB 3.2 Gen 2 ports enable rapid backups or data transfers at speeds up to 10Gb/s. Hot-swappable bays simplify drive replacement or upgrades, minimizing downtime. Compatibility with Windows NetBak Replicator and Mac Time Machine ensures straightforward backup for diverse systems. Additionally, remote access via MyQNAPCloud allows users to retrieve or share files from anywhere. Together, these capabilities provide both flexible storage options and convenient management for users with varying needs.

Best For

The QNAP device is well-suited for small businesses and home offices that require reliable storage and efficient file handling. Teams collaborating on large files benefit from the dual 2.5GbE networking, while multimedia enthusiasts can manage video, music, and photo libraries with ease. Those seeking centralized backups or secure data storage will find this desktop NAS practical and dependable. Tech-savvy users setting up personal cloud solutions can leverage the M.2 slots for faster caching or additional storage. Overall, it serves anyone needing scalable storage solutions or streamlined network access, providing a balance of performance, accessibility, and manageability across various work and personal environments.

User Feedback

Users generally appreciate this desktop NAS for its reliable performance and stable network connections, noting that file transfers are consistently fast over the dual 2.5GbE ports. Setup is described as straightforward, with intuitive software simplifying management for both beginners and experienced users. While many praise the convenience of hot-swappable drives and SSD caching, some highlight the non-expandable RAM as a limitation for more demanding applications. Overall, reviewers value its ability to centralize backups and manage media efficiently, reporting that the QNAP device strikes a practical balance between speed, storage capacity, and ease of use in everyday scenarios.

Pros

  • Users report stable and reliable performance during heavy file transfers.
  • Dual 2.5GbE network ports improve speed for office or home media workflows.
  • Hot-swappable drives make expansion and maintenance straightforward without downtime.
  • Remote access through MyQNAPCloud allows files to be accessed from anywhere securely.
  • M.2 PCIe slots enable SSD caching for faster storage operations.
  • Multiple USB 3.2 Gen 2 ports provide versatile high-speed connectivity.
  • Compact design fits well in both home offices and small business setups.
  • Setup and management are generally intuitive with QNAP's software interface.
  • Supports standard backup solutions for Windows and Mac environments.

Cons

  • RAM is limited to 8GB and cannot be expanded, which may restrict some workloads.
  • Some users find advanced configuration of storage pools and caching challenging.
  • Diskless configuration requires users to purchase drives separately.
  • Not ideal for extremely high-volume enterprise environments with 10GbE as standard.
  • The device may generate noticeable fan noise under sustained heavy use.
  • Certain advanced features may require technical knowledge to fully utilize.
  • Weight and size can be cumbersome for those seeking a very compact setup.

Ratings

After analyzing verified user reviews from multiple countries, languages, and platforms, RR-AI produced the following scores for the QNAP TS-664-8G-US NAS. Spam, incentivized, duplicated, off-topic, and exaggerated reviews were filtered out, ensuring that only authentic, high-quality feedback informed these results. The ratings reflect both the strengths and occasional pain points reported by users, providing a balanced overview of this device's real-world performance and usability.

Performance
94%
Many users highlight the device's smooth operation under heavy workloads and fast data handling. Several mention that the quad-core processor handles simultaneous tasks with minimal lag, making large file transfers and multimedia management effortless. Overall, the system responds reliably in daily use.
Not everyone agreed that performance meets all professional needs. Some users noted occasional slowdowns when multiple high-demand applications run simultaneously, especially with very large storage arrays, indicating that power users may need more memory or additional caching solutions.
Network Connectivity
91%
Buyers frequently praise the dual 2.5GbE ports for providing fast and stable file sharing across devices. Remote access and internal networking were noted as reliable and consistent, reducing delays during collaborative projects. Users found it particularly useful for streaming and large backups over the network.
Some users experienced challenges when integrating with older switches or mixed network environments, requiring manual configuration. A few mentioned that achieving maximum speeds may need high-quality cables and compatible network hardware.
Storage Flexibility
89%
This device offers versatility with multiple hot-swappable bays and M.2 SSD slots, allowing users to customize storage capacity and caching. Users appreciated the ability to mix drive types and sizes while optimizing performance for different workloads. Storage expansion is straightforward and intuitive.
Several reviewers noted that RAM cannot be expanded, which may limit future performance upgrades. Some users found that managing multiple drives and creating advanced storage pools requires moderate technical knowledge.
Setup & Installation
86%
Many buyers found the setup process straightforward, with clear guidance from the software and quick hardware assembly. The plug-and-play experience allows for fast deployment in home offices or small businesses. Basic configuration for backups and shared folders is easy for most users.
A few users encountered minor issues when integrating with specific network configurations or unusual server setups. Some reported that advanced settings for caching or RAID required additional documentation review.
Software Experience
88%
Users appreciate the intuitive QNAP interface and the comprehensive suite of apps for backups, remote access, and media management. Most found that routine tasks are simple and well-documented, making day-to-day management smoother. Notifications and monitoring tools were also praised.
Some reviewers experienced occasional software updates causing temporary glitches or required reboots. A few noted that less experienced users may face a learning curve with advanced features.
Backup & Recovery
90%
This desktop NAS provides reliable backup support for Windows and Mac systems, which many users found reassuring. Automated schedules and easy recovery procedures were highlighted as time-saving. Users reported confidence that their important files are safely stored and accessible.
Some users mentioned limitations when restoring very large datasets or using cross-platform backups, occasionally requiring manual intervention. A few felt the recovery interface could be slightly more user-friendly.
Media Management
87%
Users enjoyed the device's capability to organize and stream multimedia content effectively. Handling of large photo and video libraries was noted as smooth, and streaming to multiple devices worked without lag. Many appreciated the flexible folder and permission controls.
Certain users found advanced media features, like transcoding or remote streaming, required extra configuration. Some reported that very high-resolution content could push the system toward higher CPU usage.
Build Quality
85%
The chassis is sturdy and well-constructed, giving users confidence in long-term durability. Fans and components are quiet, making it suitable for desktop environments. Many users mentioned satisfaction with the overall design and compact footprint.
A few buyers noted that the weight makes it less portable, and limited internal RAM expansion could restrict long-term performance improvements. Some users also wished for slightly more tool-less installation features.
Remote Access
92%
Remote file access via the cloud platform was praised for being stable and convenient. Users could retrieve or share files securely from multiple locations, which simplified collaboration. Notifications and remote management features were also positively highlighted.
Some reviewers reported occasional connectivity hiccups depending on internet conditions. A few mentioned that setup for remote access behind firewalls or routers required extra configuration.
Ease of Maintenance
84%
Hot-swappable bays and intuitive software simplify maintenance tasks, and most users found routine monitoring straightforward. Replacing drives or performing system checks is less disruptive to ongoing operations. Regular updates are easy to install without affecting access.
Some users experienced minor difficulties when troubleshooting specific errors or dealing with failed drives. Advanced RAID configurations occasionally demanded extra care or research.
Drive Expansion
77%
23%
The system supports multiple drive bays and M.2 slots, providing users flexibility to increase storage. Hot-swappable drives allow easy upgrades without downtime. Many buyers appreciated the modular design for future growth.
The lack of RAM expansion and limited guidance for large RAID arrays were common complaints. A few users found managing multiple drives challenging for complex storage setups.
Value for Money
88%
Users feel the device offers solid performance relative to its cost, especially considering the dual networking ports and multiple storage options. Features like hot-swappable drives and remote access enhance perceived value. Overall, many reviewers consider it a worthwhile investment for small offices or media-heavy homes.
Some buyers noted that higher-end models provide more RAM or faster processors for slightly more cost, suggesting this model may not suit heavy enterprise workloads. A few felt that initial setup complexity slightly reduces value for less technical users.
Reliability
90%
Users consistently report stable operation under normal workloads, with minimal unexpected downtime. Daily tasks such as file transfers and backups are dependable, giving confidence for home or office use. Many emphasize that the system rarely requires intervention once configured.
Some reviews indicated that long-term heavy workloads or frequent large data transfers can occasionally trigger performance dips. A few users noted that firmware updates occasionally caused minor interruptions.
Thermals & Noise
82%
18%
Most users describe the NAS as quiet during regular operations, with efficient fan control keeping temperatures stable. It can be placed in office or home environments without distracting noise. Thermal management is generally effective for the included drives.
A small number of users reported that under sustained heavy workloads, fan noise can increase and drive bays become noticeably warm. Some wished for more advanced thermal customization options.

Suitable for:

The QNAP TS-664-8G-US NAS is particularly well-suited for small businesses and home offices that require reliable, high-speed network storage. Users managing large media libraries, such as photographers, videographers, or content creators, will benefit from the dual 2.5GbE ports and M.2 SSD slots for accelerated performance. It also works well for teams sharing files across multiple devices, as well as tech enthusiasts looking to establish a personal cloud or centralized backup system. Daily backups, remote access via MyQNAPCloud, and hot-swappable drive bays provide practical convenience, making this device effective for both work-from-home setups and collaborative environments where consistent uptime and secure storage are important.

Not suitable for:

The QNAP TS-664-8G-US NAS may not be ideal for users who need extensive RAM expansion or enterprise-grade performance under sustained heavy workloads. Those relying on very high-capacity RAID arrays or frequent large-scale data transfers may encounter limitations due to the fixed 8GB memory. Additionally, users with minimal technical experience might find advanced configuration tasks, such as network optimization or complex storage pools, challenging. This device is less appropriate for mobile setups or highly portable storage needs, and organizations requiring ultra-high-speed 10GbE networking as standard might prefer alternative models designed for heavy-duty enterprise environments.

Specifications

  • Brand: Manufactured by QNAP, a provider of network-attached storage solutions.
  • Model: TS-664-8G-US, a 6-bay desktop NAS device.
  • Form Factor: Desktop NAS supporting up to six hard drives.
  • Processor: Intel Celeron N5105/N5095 quad-core CPU for handling multitasking workloads.
  • Memory: 8GB DDR4 RAM onboard, non-expandable.
  • Network: Dual 2.5GbE Ethernet ports for faster file transfers.
  • M.2 Slots: Two PCIe Gen3x2 slots for NVMe SSD caching or storage pools.
  • USB Ports: Multiple USB 3.2 Gen 2 ports supporting up to 10Gb/s transfer speeds.
  • Diskless: Ships without hard drives, allowing users to install preferred storage.
  • Hot-Swap: Drives can be replaced without shutting down the system.
  • Backup Support: Compatible with Windows NetBak Replicator and Mac Time Machine.
  • Remote Access: Supports MyQNAPCloud for accessing files from anywhere.
  • Storage Capacity: Supports multiple drives, with total capacity up to 108TB depending on configuration.
  • Color: Black chassis suitable for home or office environments.
  • Dimensions: Measures 10 x 13.5 x 15.25 inches, providing a compact footprint.
  • Weight: Weighs approximately 6.48 pounds for easy placement and mobility.
  • Operating System: Runs QNAP's QTS operating system for NAS management and applications.
  • Expansion: Supports additional storage via M.2 SSDs and external USB devices.
  • Cooling: Includes built-in fans to maintain optimal operating temperatures.
  • Security: Provides user authentication and data protection features for network storage.

FAQ

The QNAP TS-664-8G-US NAS is a 6-bay desktop NAS featuring an Intel Celeron N5105/N5095 quad-core processor, 8GB DDR4 RAM, dual 2.5GbE network ports, and two M.2 PCIe slots for SSD caching. It comes diskless, supports hot-swappable drives, and allows remote access through MyQNAPCloud.

First, install your chosen hard drives into the 6 bays. Connect the NAS to your network using the dual 2.5GbE ports, power it on, and use QNAP's Qfinder Pro or web interface to initialize the device and configure storage pools.

No, the 8GB DDR4 RAM is onboard and cannot be expanded. Users needing higher memory must rely on the existing configuration for their workloads.

This device supports standard 3.5-inch and 2.5-inch SATA hard drives or SSDs. M.2 NVMe SSDs can also be installed in the PCIe slots for caching or storage pools.

Thanks to dual 2.5GbE ports and optional SSD caching, this NAS delivers faster transfer speeds than typical 1GbE setups. Speeds will vary depending on drive types, network infrastructure, and file sizes.

Yes, it is compatible with Windows NetBak Replicator and Mac Time Machine, enabling centralized backup for multiple computers on the network.

Absolutely. Using MyQNAPCloud, you can securely access files from anywhere with an internet connection. It also supports mobile apps for file management on the go.

Regularly check drive health via the QNAP interface, update firmware, and ensure proper ventilation. Hot-swappable bays make replacing drives simple without powering down the device.

Yes, this device handles multiple simultaneous users and large file transfers efficiently. It's well-suited for home offices and small teams needing centralized storage.

The main limitations include non-expandable RAM and the need to purchase hard drives separately. Some advanced storage features may require technical knowledge to configure optimally.