Asustor NAS — brand guide & official drive lists
Asustor publishes compatibility per series (e.g. AS 63/64), not per model — each series page covers every model inside it.
Asustor — ASUS's NAS arm — aggressive hardware, quiet pricing.
About Asustor
Founded: 2011, as a subsidiary of ASUS
Headquarters: Taipei, Taiwan
Operating system: ASUSTOR Data Master (ADM)
Product families: Nimbustor (AS), Lockerstor (AS67), Flashstor (all-NVMe), enterprise AS70/AS71
Asustor is what happens when a PC giant (ASUS) attacks the NAS market: hardware specs that embarrass the incumbents at the same price. Since 2011 the company has consistently shipped boxes with more NVMe slots, faster Ethernet, and newer Intel CPUs than similarly priced rivals — its 2026 lineup took four spots on PCMag's Best NAS list, including the all-NVMe six-bay Flashstor 6 and the four-bay Lockerstor 4 Gen3 with 2GB/s transfer claims.
The classic Asustor pitch is connectivity: four M.2 slots on a two-bay box (Lockerstor 2 Gen2+), 2.5/5GbE where others ship 1GbE, and toolless trays on the models reviewers remember fondly. ADM, its Linux-based OS, covers the fundamentals well — apps for Plex, Docker via Container Center, snapshots, mobile apps — even if it is less refined than DSM and its app store is smaller.
Asustor remains the underdog of the Taiwanese three, with a smaller community and less mindshare than Synology or QNAP. That is precisely the opportunity: the same tier of hardware costs less, and the company publishes drive compatibility per series (which our series pages mirror), keeping the buying decision straightforward. For buyers who price hardware first and software second, Asustor is the rational pick.
Asustor product lines
| Line | Segment | Notes |
|---|---|---|
| Nimbustor / AS 5x/6x (AS5402T) | Entry/Mainstream | Value 2-4 bay boxes; AS5402T is PCMag's enthusiast pick for 2026. |
| Lockerstor Gen2/Gen3 (AS6702T/AS6704T) | Performance | Four NVMe slots, 2.5/5GbE, upgradeable RAM — the spec-sheet leaders. |
| Flashstor 6/12 | All-flash | Six or twelve M.2 bays, no spinning disks — silent creator storage. |
| AS70/AS71 enterprise | Business | 10GbE, redundant PSU rack and tower options for SMB. |
Strengths & weaknesses
✓ What Asustor does well
- Best raw specs per dollar of the established brands — NVMe slots and multi-GbE appear where rivals charge extra
- All-flash option (Flashstor) nobody else offers at its price
- Straightforward ADM interface that non-IT users like in reviews
- Backed by ASUS manufacturing scale
✗ Where it trails
- Smaller app ecosystem and community than Synology/QNAP — fewer guides, fewer answers
- ADM trails DSM in polish; occasional interface lag reported on some models
- Brand mindshare is low, which matters for resale and third-party tooling
Who should buy Asustor (and who shouldn't)
Good fit if you:
- Spec-driven buyers who want NVMe, 2.5/5GbE and RAM slots without paying QNAP prices
- Creators wanting silent all-flash NAS (Flashstor line)
- ASUS-loyal households and small offices
Look elsewhere if:
- You want the deepest app catalog and community knowledge base
- You need the absolute simplest software experience
Pricing: Value to mid-premium: ~$250 entry, $400-600 mainstream (Lockerstor class), all-NVMe Flashstor from ~$600.
Software: ADM is functional and fast but simpler than DSM/QTS: core apps (photo, backup, surveillance, containers) exist, the app store is smaller, and update cadence is steadier than flashy. Reviewers consistently call it "user-friendly, albeit somewhat more limited."
Asustor FAQ
Is Asustor a real brand or a no-name?
It is a subsidiary of ASUS, founded 2011, with a 15-year NAS track record and 2026 PCMag Best NAS awards across four models. It is smaller than Synology and QNAP but firmly established.
How does ADM compare to DSM and QTS?
ADM covers the same core jobs — file sharing, photos, snapshots, containers, surveillance — with a simpler, faster interface. It has fewer first-party apps and a smaller store. Think of it as 90% of the daily-use experience with less ecosystem depth.
Why does Asustor publish drive lists per series?
Its compatibility tool lists drives per product family (e.g. AS 63/64) rather than per SKU, since models within a series share drive electronics. Our Asustor series pages mirror that structure directly.