Advanced technology and exceptional support.
Good value for moderate needs.
Budget-friendly but with limited performance.
👍 What we like
- ✓Technical support and software updates for new models.
- ✓Possibility of acquiring a used NAS with high specs at a lower cost.
- ✓Compliance with current security and privacy standards.
- ✓Flexibility in configuring external hard drives.
👎 What to watch
- ✕Higher initial cost for new models.
- ✕Risk of unexpected failure with an unverified used NAS.
- ✕Less suitable for intensive use in terms of performance.
🏆 Our picks
Affiliate links · same price for you
Synology DiskStation DS1621xs+
Amazon · price and availability on the listing
Asustor ADM-AS3202T
Amazon · price and availability on the listing
See all our recommended gear in the shop.
📑 Contents ▾
Faced with the dilemma between a used and new NAS, the choice involves balancing immediate costs and long-term benefits. Used models offer economical purchases but require thorough verification of technical specifications and equipment condition to avoid future disappointments. In contrast, a new NAS guarantees reliable technical support and the latest software updates, essential for security and user comfort over time.
Why this choice matters
The choice between a used or new NAS depends on several key factors. Firstly, the state of the hardware is crucial: used models should be free from scratches with clean connectors and functioning hard drives without defective sectors. Additionally, compliance with current security standards must be verified to prevent sensitive data leaks. Furthermore, technical support plays a major role: new models often come with manufacturer warranties and regular updates that can prove vital in case of software or security issues.
Buying criteria
To evaluate a NAS properly, one must consider performance, total cost of ownership (TCO), and warranty. Performance includes sequential and random throughput rates as well as the number of simultaneous connections supported. TCO takes into account not only initial purchase costs but also long-term energy and maintenance expenses. Finally, the warranty provided by the manufacturer is a key criterion for minimizing financial risks associated with unexpected failures.
Presentation of the 3 recommended products
1. Synology DiskStation DS1621xs+
The DS1621xs+ from Synology is ideal for those seeking performance and flexibility. Processor, number of bays, expansion and warranty: see the Synology spec sheet; we have no sourced spec sheet for this model and do not quote any figure. Bought new, it comes with the manufacturer warranty and DSM updates.
2. QNAP TS-453D
The TS-453D from QNAP combines performance with cost savings: according to its manufacturer page (QNAPworks), it has an Intel Celeron J4125 quad-core at 2.0 GHz (2.7 GHz burst), 4 or 8 GB of DDR4 (8 GB maximum), four 3.5” bays and two 2.5GbE ports. However, it is important to verify the hardware condition if opting for a used version.
3. Asustor ADM-AS3202T
For tight budgets, the ADM-AS3202T from Asustor offers an interesting compromise. Processor and speeds: see the Asustor spec sheet; we have no sourced spec sheet for this model. It better suits intermediate users and requires careful consideration when purchasing a used model.
Comparison table
| Criteria | Synology DS1621xs+ | QNAP TS-453D | Asustor ADM-AS3202T |
|---|---|---|---|
| Power consumption (spec sheet) | see Synology spec sheet | 11.96 W with drives in standby, 25.98 W in typical operation | see Asustor spec sheet |
| Processor (spec sheet) | see Synology spec sheet | Intel Celeron J4125, 4 cores | see Asustor spec sheet |
| Warranty | see Synology spec sheet | see QNAP spec sheet | see Asustor spec sheet |
TS-453D values: manufacturer page (QNAPworks, read on 17/10/2026). For the other two models, refer to the Synology and Asustor spec sheets: we do not publish unsourced figures.
Use cases
The choice will mainly depend on your specific needs. For a professional user requiring high availability and regular updates, the DS1621xs+ is essential despite its higher initial cost. Intermediate enthusiasts seeking versatility and reliability may opt for the TS-453D, while beginners or budget-conscious users will find satisfaction with the ADM-AS3202T.
Pitfalls to avoid
Avoid purchasing a used NAS without checking the hardware condition and actual performance. Do not hesitate to ask for current usage screenshots to assess hard drive health. Additionally, ensure that your chosen model is compatible with your storage and security needs.
Verdict
In conclusion, if budget allows and you seek long-term stability and performance, a new NAS remains the best option. However, if cost-saving is an absolute priority and you are prepared for thorough inspections, a good used model can offer similar performance at a lower price. Consult our page /materiel-recommande/ for more personalized advice based on your user profile.