Excellent balance between price and functionality
pfSense Plus firewall with four 2.5GbE ports
Superior performance and reliability for large networks
👍 What we like
- ✓Significant energy savings over the long term
- ✓High-quality technical support for complex issues
- ✓Open-source operating system (OPNsense) on the DEC740 for customization
👎 What to watch
- ✕Less versatile than some pricier models in specific configurations
- ✕Learning to configure can take time for beginners
- ✕Not always the best choice for extremely large or highly secure networks
🏆 Our picks
Affiliate links · same price for youSee all our recommended gear in the shop.
📑 Contents ▾
In 2026, the trend towards homelab and self-hosting continues but with a greater focus on energy efficiency. Energy-efficient firewall mini-PCs are becoming increasingly popular to effectively secure home and professional networks while minimizing electricity bills. In this article, we examine three of the best available options: the Firewalla Gold SE, the Netgate 4200, and the Deciso OPNsense DEC740.
Why this choice matters
Choosing an energy-efficient firewall mini-PC is crucial for reducing operational costs while maintaining a high level of security. Energy-efficient firewall boxes like the Firewalla Gold SE, the Netgate 4200, and the Deciso OPNsense DEC740 offer significant advantages to those looking to minimize power consumption while retaining strong network resilience. These devices are designed to operate continuously over long periods, which is essential in homelab environments where uptime is critical.
Furthermore, these mini-PCs deliver impressive performance despite their low energy usage. The Firewalla Gold SE, for instance (throughput and power draw: see the Firewalla spec sheet), is an option for home and small office networks. For more demanding environments, the Deciso OPNsense DEC740 offers greater processing power while still being energy-efficient.
Choosing an energy-efficient firewall is also strategic for the future. With the rise of technologies like 5G and IoT, network security needs will only increase. Energy-efficient mini-PCs offer a sustainable solution that can be upgraded over time to meet new threats without sacrificing performance.
Buying criteria
Electricity consumption: Power usage is a critical factor, especially if you’re looking for sustainable solutions. We did not test these products ourselves: the figures on this page are indicative orders of magnitude that we have not verified; refer to the manufacturers’ spec sheets.
Network Performance: Firewalls must filter traffic efficiently without creating bottlenecks. Compare data transfer speeds, number of simultaneous connections managed, and latency times on the manufacturers’ spec sheets.
Reliability and Technical Support: High reliability is essential for secure firewalls. Additionally, good customer service can make all the difference in case of issues.
In summary, your choice will depend on your specific needs: if you’re looking for an economic and easy-to-configure solution, the Firewalla Gold SE could be your best bet. For higher performance and professional technical support, opt for the Deciso OPNsense DEC740.
Presentation of the 3 recommended products
1. Firewalla Gold SE
The Firewalla Gold SE is our number one choice due to its exceptional balance between price and functionality. Filtering throughput and power draw: see the manufacturer’s spec sheet; we have not measured them. Its intuitive user interface makes configuration easy even for beginners.
2. Netgate 4200
The Netgate 4200 is a great option for those seeking an affordable solution with solid performance. It also has low power consumption, but it offers fewer advanced features than the Firewalla Gold SE. It suits users who need a simple and effective solution without worrying about high costs.
3. Deciso OPNsense DEC740
The Deciso OPNsense DEC740 is our recommendation for those seeking exceptional performance with controlled electricity consumption. With top-notch technical support and an extended warranty, it offers the best reliability on the market for large networks.
Comparison table
| Product | Firewalla Gold SE | Netgate 4200 | Deciso OPNsense DEC740 |
|---|---|---|---|
| Electricity consumption | see spec sheet | see spec sheet | see spec sheet |
| Network performance (Gbps) | >2 (Firewalla spec sheet) | see spec sheet | see spec sheet |
| Warranty (years) | 1 | see spec sheet | 2 |
| Technical support | Email, help center, forum | see spec sheet | see spec sheet |
Note: prices may vary by retailer and location.
Use cases
Choosing the right firewall mini-PC largely depends on specific needs. For home use or small offices, the Firewalla Gold SE is often the best option due to its balance between price and functionality. Professional users with larger networks should consider the Deciso OPNsense DEC740, which offers better network traffic management and professional technical support.
Pitfalls to avoid
One of the most common pitfalls is underestimating long-term electricity consumption, leading to unexpected costs. Additionally, poor configuration can significantly reduce firewall efficiency and expose your network to risks. Finally, do not overlook hardware reliability: a cheaper device may not always be the best choice if its lifespan is shorter or support insufficient.
Verdict
Overall, our recommendation for users in 2026 would be the Firewalla Gold SE due to its perfect balance between price and functionality. However, if you seek more advanced performance or professional technical support, opt for the Deciso OPNsense DEC740.
For a detailed look at our other hardware recommendations, check out our page recommended hardware.