REVIEW: Asustor Flashstor 6 FS6706T – 6 Bay All-SSD NAS Storage

For years, I struggled with fragmented data across external hard drives and a sluggish home server, constantly battling slow transfers, limited space, and the nagging fear of a drive failure. This problem wasn’t just an inconvenience; it meant wasted time waiting for files, hindered creative workflows, and the very real risk of losing precious memories and critical project files. Finding a centralized, high-speed, and reliable storage solution was paramount, and that’s precisely where the concept of an all-SSD Asustor Flashstor 6 FS6706T would have been a game-changer.

What to Weigh Before Your Purchase

Anyone considering a Network Attached Storage (NAS) device is likely looking to centralize their data, enhance security, and improve access speeds. A NAS solves the common headaches of scattered files, limited local storage, and the vulnerability of individual drives. It’s ideal for creative professionals, small businesses, avid media consumers, and anyone with a growing digital footprint who needs reliable, always-on access to their data.

However, a traditional hard drive-based NAS might not be for everyone. If your primary need is raw, budget-friendly capacity for archival purposes, and you don’t mind slower access times, then a traditional HDD-based unit might be more suitable. Those who shouldn’t opt for an all-flash NAS if budget is a severe constraint or if their data needs are purely static and massive (think petabytes of cold storage). Instead, they might consider a hybrid NAS with both SSDs for caching/applications and HDDs for bulk storage, or simply cloud storage.

Before investing in a NAS, especially an all-flash one, several factors demand careful thought:
* Performance Needs: Are you dealing with large video files, intense photo editing, or running multiple virtual machines? SSDs excel here.
* Capacity vs. Cost: NVMe SSDs are faster but significantly pricier per terabyte than HDDs.
* Network Infrastructure: Do you have 2.5GbE or 10GbE network switches and cables to fully utilize the speed?
* Expandability: Can the unit grow with your storage needs, either internally or via expansion units?
* Software Ecosystem: Does the NAS operating system (e.g., ASUSTOR’s ADM) offer the apps and features you require for backups, media serving, and productivity?
* Noise and Power Consumption: SSD-only units are often quieter and more power-efficient.
* Build Quality and Support: A reliable device from a reputable brand with good support is crucial for data longevity.

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Unveiling the Flashstor 6 FS6706T

The Asustor Flashstor 6 FS6706T is a sleek, compact Network Attached Storage device designed specifically for the modern all-SSD era. Its core promise is unparalleled speed, quiet operation, and robust data management in a desktop-friendly form factor. When you purchase this unit, you receive the NAS enclosure itself, power adapter, an Ethernet cable, and a quick installation guide – a diskless setup, meaning you’ll need to supply your own M.2 NVMe SSDs.

Compared to traditional NAS units from market leaders like Synology or QNAP, which often focus on hybrid storage or large HDD bays, the Flashstor 6 stands out with its exclusive M.2 NVMe SSD support. While QNAP does offer some all-SSD models, they often come at a much higher price point or with a different design philosophy. The Flashstor 6 is particularly suited for creative professionals, content creators, and enthusiasts who demand low-latency, high-throughput storage for applications like video editing, virtualization, or high-resolution media streaming. It’s less for those needing petabytes of archival storage on a tight budget.

Pros:
* Dedicated M.2 NVMe SSD slots for extreme speed.
* Dual 2.5-Gigabit Ethernet ports, link aggregation capable.
* Compact, silent, and energy-efficient design.
* HDMI 2.0b and S/PDIF output for direct multimedia playback.
* Intel Celeron N5105 CPU offers excellent performance for its class.
* Expandable RAM up to 16GB (or even 32GB unofficially).

Cons:
* Higher cost per TB compared to HDD-based NAS.
* Plastic enclosure material may not feel as premium as full metal.
* Included 4GB RAM can be a bottleneck for heavy Docker use without upgrade.
* 2.5GbE, while fast, can still bottleneck max NVMe speeds in some scenarios.
* Some users have reported issues with M.2 slot mechanisms being fragile or SSD compatibility challenges.

Key Attributes and Their Advantages

Having integrated the Asustor Flashstor 6 FS6706T into my workflow, I can attest to its transformative impact on data management and accessibility. It’s been a significant upgrade, fundamentally changing how I approach storage and processing.

The Heart of the Beast: Intel Celeron N5105 CPU

At the core of the Flashstor 6 lies the Quad-Core 10 nm Intel Celeron N5105 processor, clocking up to 2.9 GHz. This isn’t just a basic CPU; it’s a remarkably capable chip that delivers a performance increase of up to 31% over the previous generation. In my daily use, this translates to snappier navigation within the ADM operating system, faster execution of applications, and robust handling of multiple concurrent tasks. For instance, I’ve run several Docker containers for home automation and media management alongside active file transfers without any noticeable slowdown. This powerful processor ensures that the NAS isn’t just a storage box, but a true mini-server capable of tackling diverse computing needs, from surveillance to multimedia. The efficiency of the 10nm process also contributes to lower power consumption, which is a welcome bonus for a device running 24/7.

Lightning-Fast Storage: Six M.2 NVMe Slots

The most defining feature of the Flashstor 6 is its six dedicated M.2 NVMe slots. This all-SSD design is where the “Flashstor” name truly shines. The sheer speed of NVMe drives over traditional SATA SSDs, let alone HDDs, is incredible. Setting up a RAID 5 array with six 2TB NVMe drives, I achieved nearly 10TB of usable storage with read/write speeds that saturate the 2.5GbE network connection. Transferring multi-gigabyte video projects or large photo libraries is no longer a test of patience but a rapid operation. Editing directly from the NAS, even 4K footage, feels almost as responsive as working from a local SSD, eliminating the constant need to copy files back and forth. This feature is crucial for professionals who require immediate access to large datasets and benefit from low-latency operations, significantly streamlining creative workflows and boosting productivity. It also ensures the unit operates silently, a huge advantage in a home office environment.

Unbottled Connectivity: Dual 2.5-Gigabit Ethernet

Networking often proves to be the bottleneck in many NAS setups, but not with the Asustor Flashstor 6 FS6706T. Equipped with dual 2.5-Gigabit Ethernet ports, it offers speeds significantly higher than standard 1GbE. For me, this means consistent transfers at around 280 MB/s, effectively maximizing the performance of the NVMe drives. Furthermore, the ability to aggregate these two ports allows for even greater theoretical bandwidth, perfect for environments with multiple users or systems demanding simultaneous high-speed access. While 10GbE would be ideal for absolute peak NVMe performance, 2.5GbE strikes a fantastic balance between cost, availability of compatible network gear, and practical performance for most home and small office users. It ensures that the speed of your internal SSDs isn’t wasted by a slow network connection.

Ample Memory for Demanding Tasks: 4 GB DDR4 RAM

The Flashstor 6 comes with 4 GB of fast and efficient DDR4-2933 RAM. While 4GB is sufficient for basic file serving and light application use, the true benefit lies in its expandability. I quickly upgraded mine to 16GB (and others have successfully gone to 32GB unofficially), which unlocked its full potential for running multiple Docker containers, virtual machines, or more demanding multimedia applications like Roon Server. The additional RAM significantly enhances the responsiveness of the ADM operating system and allows for smoother multitasking, ensuring that your NAS can handle more than just storage tasks without breaking a sweat. For those who want to leverage their NAS as a versatile server, the RAM upgrade is highly recommended.

Versatile Expansion: Dual USB 3.2 Gen 2×1 Ports

Despite its compact size and focus on internal M.2 storage, the Flashstor 6 doesn’t skimp on external connectivity. The dual USB 3.2 Gen 2×1 ports offer incredibly fast external transfer speeds, which I’ve found invaluable for quick backups to external SSDs or connecting an expansion unit like the AS6004U for when raw capacity is still needed. This flexibility means you’re not locked into just the internal NVMe drives; you can easily augment your storage for cold backups or to integrate existing USB drives. It’s a thoughtful inclusion that adds significant versatility to the unit.

A Feast for the Senses: HDMI 2.0b and S/PDIF Output

What sets the Flashstor 6 apart from many other NAS devices is its direct multimedia output capabilities: an HDMI 2.0b port and an S/PDIF output over TOSLINK. This allows the NAS to function as a powerful media center directly connected to a TV or sound system. I’ve used the HDMI output for local playback of 4K content, which is incredibly smooth, and the S/PDIF port for pristine audio quality with Roon Server. This feature transforms the NAS from a pure storage device into an entertainment hub, making it a central component of a modern smart home setup.

Seamless Media Experience: 4K Hardware Transcoding

Complementing its multimedia outputs, the Asustor Flashstor 6 FS6706T boasts smooth 4K hardware transcoding. This is a game-changer for media enthusiasts who stream content to various devices with differing playback capabilities. Whether I’m watching a high-bitrate 4K movie on my smart TV or a lower-resolution stream on a mobile device, the NAS handles the real-time conversion effortlessly. This feature offloads the processing burden from client devices and ensures a consistent, high-quality viewing experience across all platforms, making your media library truly accessible anywhere.

Smart Power Management: Wake on WAN/LAN

Efficiency is key for any always-on device, and the Flashstor 6 excels here with support for Wake on WAN (WoW) and Wake on LAN (WoL), alongside comprehensive power scheduling and Sleep Mode (S3). I’ve configured my unit to power down during off-peak hours and wake up only when needed or when I access it remotely via WoW. This significantly reduces power consumption and running costs without sacrificing accessibility. It’s a clever implementation that keeps the NAS energy-efficient while still being responsive to demands, showcasing Asustor’s commitment to eco-friendly design.

Keeping Cool Under Pressure: Efficient Cooling Design

Running six NVMe SSDs generates heat, but the Flashstor 6 features a well-engineered silent fan and an efficient air duct design. This ensures rapid heat dissipation, keeping the SSDs at optimal operating temperatures. Over my extended period of use, the drives have remained cool, contributing to their longevity and stable performance. This attention to thermal management is crucial for an all-flash system, preventing thermal throttling and extending the life of expensive NVMe drives. While an optional heatsink accessory is available, I found the built-in cooling to be more than adequate for my usage, keeping the unit whisper-quiet.

Empowering Creativity: ASUSTOR Live and Professional Software Support

For content creators, the Flashstor 6 is more than just storage; it’s a powerful platform. Features like ASUSTOR Live transform it into a personal streaming and backup center for platforms like YouTube and Twitch. More importantly, the ability to edit videos directly on the NAS with professional software like Adobe Premiere or Final Cut Pro is a revelation. It removes the constraint of limited laptop SSD space, allowing projects to grow without constant data shuffling. The integration with public cloud providers also enables a hybrid cloud setup, fostering easy collaboration regardless of physical location. This flexibility has truly allowed my creativity to know no bounds, making the NAS an integral part of my digital workspace.

Robust Operating System and Data Protection: ADM OS

The experience of using any NAS is heavily influenced by its operating system, and ASUSTOR’s ADM (ASUSTOR Data Master) is a fantastic foundation. It’s renowned for its user-friendability, stability, and a rich array of functionalities. Beyond core file sharing, ADM offers a comprehensive surveillance system (supporting up to 44 camera channels), making the Asustor Flashstor 6 FS6706T a central hub for home security. Moreover, ADM is built on Linux, incorporates a built-in firewall, includes ClamAV Antivirus, MyArchive cold backup technology, and various backup tools, all designed to protect your data from loss, damage, and ransomware. This layered approach to security provides immense peace of mind, knowing that my valuable data is safeguarded both internally and externally. While perhaps not as feature-rich as QTS for some advanced niche applications, ADM is intuitive and provides all the essential tools most users will need.

Community Feedback on the Flashstor 6

Scouring online forums and user reviews confirms that my positive experience with the Flashstor 6 is widely shared. Many users praise its quiet operation and solid performance, especially when loaded with NVMe drives. One long-term owner mentioned it running flawlessly for years, serving as a reliable hub for their extensive music library and media files, even highlighting its simplicity for first-time NAS buyers. The ease of SSD installation and the ADM software’s versatility also frequently receive accolades, with some users even choosing it over more complex OS options. However, some initial setup challenges with SSD compatibility and concerns about the fragility of the M.2 holders have been noted, suggesting careful research on compatible drives and gentle handling during assembly.

Final Thoughts and Recommendation

The problem of scattered, slow, and insecure data is a pervasive one in our digital age, leading to lost time, frustration, and the potential loss of invaluable digital assets. The complications of not addressing this issue can range from minor annoyances to catastrophic data loss. The Asustor Flashstor 6 FS6706T stands out as an exceptional solution for these challenges.

Firstly, its all-NVMe design delivers phenomenal speed and silent operation, making it ideal for high-performance tasks and quiet home environments. Secondly, the robust ADM operating system, coupled with comprehensive data protection and multimedia features like 4K transcoding and direct HDMI output, offers incredible versatility beyond just storage. Finally, its compact size and energy-efficient design mean it integrates seamlessly into any setup without demanding excessive space or power. For anyone seeking a fast, quiet, and reliable all-SSD NAS to centralize and protect their digital life, this unit is a brilliant choice. To explore its capabilities further and secure your own, click here to check the product out.

Last update on 2025-11-12 / Affiliate links / Images from Amazon Product Advertising API