NAS Devices 2026 — Live Prices for Every Brand

The 2026 NAS market: from two horses to six

For a decade, buying a NAS meant choosing between Synology and QNAP. That two-horse race is over. UGREEN — a brand most people knew for USB chargers — entered with the NASync line and reset the hardware-per-dollar baseline: Intel CPUs, DDR5 memory, and 10GbE networking at prices where the incumbents still ship entry silicon and 2.5GbE. TerraMaster carved out the budget position with capable x86 boxes that cost less than anyone else's, and became the default chassis for people who install TrueNAS or Unraid and never touch the bundled OS. UniFi extended its networking ecosystem into storage with the UNAS line for people already running a UniFi rack, and Asustor kept its niche with the Lockerstor and all-flash Flashstor series.

Synology, meanwhile, spent 2025 in a self-inflicted controversy: new Plus-series units shipped with drive compatibility restrictions that effectively pushed buyers toward Synology-branded drives. The backlash was loud, and Synology reversed course — DSM 7.3 restored third-party drive support on Plus models. We state that factually because it matters to buyers: current Synology units accept standard NAS drives again, and the episode is a reminder that software policy is as much a part of a NAS purchase as hardware. The practical result of all this competition is the best buyer's market NAS shoppers have ever had — provided you can see real prices, which is exactly what this page tracks every two hours.

Choosing by brand

Synology is the software pick. DSM is the closest thing to an appliance OS in this market: excellent Photos and Drive apps, mature snapshots and replication, and the least tinkering of any platform. The trade-off is weaker hardware per dollar — you pay a premium for polish, and 10GbE usually costs extra. Buy it when the people using the NAS are not the people who enjoy configuring one.

QNAP gives you the most hardware for the money among the incumbents: more RAM, M.2 slots, PCIe expansion on many models, and HDMI out. QuTS hero brings ZFS to its bigger boxes. The UI is busier than DSM and the app store noisier, but for power users who want expansion options, the TS-464 and TS-664 remain the reference all-rounders — and the best Plex boxes at their price.

UGREEN is the 2026 value king. The NASync line ships newer Intel silicon, DDR5, and 10GbE where rivals charge several hundred dollars more for less. UGOS Pro is younger than DSM or QTS — it covers the essentials (containers, snapshots, media serving) and is maturing quickly, but its app ecosystem is thinner. Buy UGREEN for raw specs per dollar, or as premium hardware for a third-party OS.

TerraMaster sells the cheapest capable x86 hardware in the market. TOS has improved but remains the weakest first-party OS here — which is precisely why TerraMaster boxes are beloved as bare-metal hosts for TrueNAS and Unraid. If your plan is to replace the OS anyway, nobody gives you more machine for less money.

UniFi treats storage as an extension of the network stack. The UNAS line is a storage appliance in the literal sense: a clean UniFi Drive interface, tight integration with UniFi consoles, and aggressive pricing per bay. It is not an app platform — no Docker playground, no media-server ambitions — and that focus is exactly why UniFi-shop operators like it.

Asustor owns two niches: the Lockerstor line for spec-heavy traditional NAS (ECC memory options, four M.2 slots, fast networking) and the Flashstor line, the most accessible all-NVMe NAS on the market. ADM is a competent middle-ground OS. If you want all-flash without building a server, Flashstor effectively is the category.

WD's My Cloud line sits at the consumer entry point, but none of its models currently verify in stock at a live price, so we exclude the brand from the rankings above until that changes.

Choosing by bay count

Two bays buy you a mirror: one drive of usable capacity, one drive of protection — the right shape for household backup and small photo libraries. Four bays are the mainstream answer because RAID 5 turns four drives into three drives of usable space with one-drive fault tolerance, and the per-terabyte economics improve meaningfully over a mirror. Six and eight bays are for media libraries and small businesses: at those capacities you should be running RAID 6, because rebuild windows on today's large drives are long enough that two-drive protection stops being optional. Each size has its own live-priced page — 2-bay, 4-bay, 6-bay and 8-bay — and the NAS Builder totals any configuration as a complete build. Model the exact capacity math for your drive count and RAID level in the RAID planner, and if you are upgrading an existing array rather than starting fresh, the upgrade planner computes the net cost of jumping to bigger drives after reselling your current ones.

One planning rule saves most buyers money: purchase bays for the data you expect in three years, not the data you have today. A half-populated six-bay costs little more up front than a full four-bay, but it grows by sliding in drives instead of migrating an entire array — and in the current drive shortage, being able to defer drive purchases until prices dip is worth real money. The reverse mistake is buying a two-bay to save a hundred dollars and outgrowing it in a year; the migration to a bigger chassis costs more than the bays would have.

The real total: NAS + drives

Every NAS on this page is diskless, so the enclosure price is only the down payment — the drives usually cost more than the box. That is why we price both sides live, from the same database, refreshed on the same cycle.

Drive choice matters as much as the enclosure: stick to CMR NAS drives, and compare live per-terabyte prices on the NAS drive tracker and the 20TB capacity page before you buy. If you already own drives, run your configuration through the upgrade planner to see whether reusing or replacing them is cheaper per usable terabyte. If you are weighing a 10GbE model, the 10GbE NAS page lists which units ship the port and makes the honest case for 2.5GbE instead.

Frequently asked questions