TL;DR
A 2026 comparison names the Synology DS223 its best overall NAS, with UGREEN and BUFFALO models recommended for expansion and simpler setup. Despite the AI-focused framing, the supplied findings do not document AI hardware, models or applications on any device.
A new 2026 network-attached storage comparison has named the Synology DS223 its best overall private-cloud device, while recommending UGREEN and BUFFALO alternatives for larger libraries or simpler installation. The report may help households and small offices narrow their options, but it supplies no confirmed evidence of AI features in the listed hardware despite presenting the category as AI-enhanced.
The comparison places the two-bay Synology DS223 first because of its software, management tools and ability to use two drives. A two-drive configuration can support disk mirroring when set up appropriately, giving users more protection against a single drive failure than the one-bay BUFFALO LinkStation 210. The Synology unit is sold without drives, so its final cost depends on the capacity and number of disks purchased separately.
For buyers expecting storage needs to grow, the report favors the four-bay UGREEN DH4300 Plus, citing support for up to 128TB, 8GB of memory and 2.5-gigabit Ethernet. It identifies the two-bay UGREEN DH2300 as a beginner-oriented alternative, although its 1GbE connection is slower. Those are hardware and usability distinctions; the source does not identify a neural processor, local language model, AI photo indexing or another verified AI workload for either device.
The BUFFALO LinkStation 210 range is presented as the simpler entry point because its 2TB, 4TB and 6TB versions include a hard drive. That convenience comes with a shared limitation: each has one drive bay, preventing mirrored redundancy inside the enclosure. The comparison also assigns specialist roles to the Synology DS225+ for media serving, the UGREEN DXP2800 for demanding file workloads and the Yxk Zero1 for Docker experimentation.
Private Clouds Need Clearer AI Proof
NAS devices can keep backups, documents and media under a user’s direct control while providing shared access across a home or office network. That makes drive layout, recovery options, software support and remote-access security more consequential than an AI marketing label. A product described as AI-enhanced should identify the task being accelerated, where processing occurs and whether data leaves the device.
The rankings also show how initial price can obscure total cost. BUFFALO’s included-drive products can be used with less additional purchasing, while diskless Synology and UGREEN enclosures require compatible drives. Buyers seeking 2.5GbE transfers may also need a matching router, switch, cabling and computer interface; otherwise, the faster NAS port may offer little benefit.
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Capacity and Redundancy Shape Rankings
The report evaluates 10 devices across four brands, with enclosures ranging from one to four bays. Its recommendations are organized around buyer profiles rather than a single performance benchmark: plug-and-play storage, beginner use, media libraries, content creation and self-hosted applications.
Its central tradeoff is between simplicity and expansion. Single-bay units reduce installation work when a disk is included, but they cannot mirror data internally. Two-bay units allow more flexible layouts, while a four-bay enclosure provides greater capacity and more storage configurations. RAID is not a backup, however, because deletion, malware, theft and enclosure failure can still affect data; an independent backup remains necessary.
“Synology DS223 takes the best-overall position because its two-bay layout and polished software are more broadly useful than the simpler single-bay BUFFALO models.”
— Thorsten Meyer AI comparison
AI Capabilities Lack Supporting Detail
It is not clear why these products are labeled AI-enhanced. The supplied material does not describe AI processors, supported models, automated classification accuracy, local inference performance or privacy controls for AI applications. It also does not establish whether any intelligence comes from the enclosure, optional software, Docker containers or an external cloud service.
Several other points remain unresolved, including current prices, regional availability, compatible-drive restrictions and directly comparable test results. The source cites a speed improvement for the BUFFALO LinkStation 710 over the LinkStation 210 but provides no benchmark data. The reported capacity limits and warranty terms should also be checked against current manufacturer documentation before purchase.
Manufacturers Must Substantiate AI Features
Prospective buyers should next compare manufacturer specifications and supported-drive lists, then calculate the full cost of drives, network upgrades and backup storage. Anyone buying for AI workloads should seek named applications, local-processing details and measured performance rather than relying on the category label.
Future testing will need to establish whether these systems provide useful on-device AI, how that processing affects power use and performance, and what information is transmitted externally. Until those results are available, the report supports a choice based on bays, software, networking and included storage, not confirmed AI capability.
Key Questions
Which NAS did the 2026 comparison rank first?
The report selected the Synology DS223 as its best overall choice, citing its two drive bays and approachable software. Drives are sold separately.
Are these NAS devices confirmed to include AI features?
No specific AI capability is confirmed in the supplied findings. The source provides no AI hardware specifications, named models or performance tests, so the AI-enhanced description remains unsupported.
Which model offers the most expansion room?
The comparison gives that role to the four-bay UGREEN DH4300 Plus, listing support for up to 128TB. Usable capacity depends on installed drives and the selected storage configuration.
Which devices include storage?
The listed BUFFALO LinkStation 210 models include 2TB, 4TB or 6TB drives, and the LinkStation 710 listing includes 4TB. Their single-bay design prevents internal mirroring.
Does a two-bay NAS eliminate the need for backups?
No. Mirroring can protect against one drive failure, but it does not protect against accidental deletion, malware, theft or enclosure damage. Users still need an independent backup copy.
Source: Thorsten Meyer AI
