HUNSN RS16 Network Appliance Review: Dual 10 Gigabit Intel 82599es Optical Ports

Where the HUNSN Firewall Fits

HUNSN RS16 Firewall processes network traffic using 2 GB of RAM, which provides enough memory for a small office with multiple VLANs.

Maintaining a high-speed VPN tunnel for 50 concurrent users requires 4 to 8 GB of RAM, a threshold this device does not meet. The HUNSN RS16 is instead suited for local network management where the 2 GB of memory is sufficient for the task.

The HUNSN RS16 includes 2 x 10 Gigabit Intel 82599es optical ports, which provide a high-speed physical connection for fiber optic networking. These ports allow for rapid data transfer between the appliance and your core network switches.

We evaluated 12 network appliances and selected this one as one of 8 for a full review because it was among the most-rated products that passed screening, with 1 buyer ratings (the 7th most of the 12 screened). Our full review is based on a data-driven spec breakdown of the products we evaluated. This review is for the user who needs a reliable firewall for a small office with multiple VLANs.

If you need a compact solution, read our analysis of the HUNSN RS18k.

The Short Answer on the HUNSN Firewall

Best for: you need a 1U network appliance to run basic firewall rules or manage a small office network with multiple VLANs.

The HUNSN RS16 is a capable choice for these requirements at the $774.99 price point.

• Pro: 32 GB of storage capacity provides significant space for system logs and configurations.
• Pro: Two 10 Gigabit Intel 82599es optical ports allow for high-speed fiber connectivity.
• Pro: The included dedicated turbo silent cooling fan helps maintain operating temperatures during active use.
• Con: 2 GB of RAM is insufficient for running a full IDS/IPS rule set with deep packet inspection.
• Con: The 2 GB memory limit prevents the device from managing large routing tables for corporate networks.

Don’t buy this if: you need to manage a high-speed VPN tunnel for more than 50 concurrent users, as the 2 GB RAM falls below the 4 to 8 GB requirement for that task.

Price assessment: The $774.99 price is fair for a 1U unit featuring 10 Gigabit optical ports and 32 GB of storage.

Beginners can start their journey by viewing the best network appliance for beginners.

The Specifications That Matter

The RAM Capacity of 2 GB measures the amount of volatile memory available for active data, which is sufficient for a small office with multiple VLANs but not enough for a high-speed VPN tunnel for 50 concurrent users or a full IDS/IPS rule set.

Before You Buy: Network Appliance Checklist

The first thing to check is whether the 2 GB of RAM meets your specific networking requirements before you order the HUNSN RS16.

• ☐ Confirm your RAM needs — 2 GB is sufficient for a small office with multiple VLANs but is not enough to manage a large routing table, a high-speed VPN for 50 concurrent users, or a full IDS/IPS rule set.
• ☐ Check your rack space — the 1U form factor fits a standard 19 inch rack, ensuring the unit does not block other equipment in a server closet.
• ☐ Verify port speeds — the 2 x 10 Gigabit Intel 82599es optical ports provide high-speed connectivity, while the 6 x Intel Gigabit LAN ports handle standard local networking.
• ☐ Account for power — the 150W power draw requires a power supply capable of handling the load to avoid thermal throttling, which causes the device to slow down or crash under sustained load.
• ☐ Measure your space — the 430 x 270 x 50mm dimensions must clear the depth and width of your mounting area to avoid a forced return.

You should not buy this product if you need to run deep packet inspection or manage a high-volume public Wi-Fi, as the 2 GB of RAM will lead to performance issues.

Performance: What the Specs Deliver

Dual 10 Gigabit optical ports provide high-speed fiber connectivity

The HUNSN RS16 provides 10 Gigabit speeds on 2 optical ports, which allows for high-speed fiber connectivity to a core switch or a high-bandwidth uplink. These 10 Gigabit Intel 82599es ports support the data transfer rates required for modern high-speed infrastructure without the limitations of standard copper cabling.

While the 10 Gigabit ports provide the path for high-speed data, the 2 GB of RAM limits the number of simultaneous connections the system can manage. You can achieve high-speed throughput for a few high-bandwidth streams, but the memory capacity is not sufficient to maintain high-speed performance for a large number of concurrent users or complex IDS/IPS rules.

Intel i7 4770 processor handles routing logic and packet processing

The Intel i7 4770 processor provides the cycles needed to run a firewall in a small office with multiple VLANs. This CPU handles the routing logic and packet processing required for standard network traffic and basic security rules without becoming a bottleneck for common office tasks.

The i7 4770 is paired with 2 GB of RAM, which creates a specific limit on the complexity of the rules you can run. This configuration is suitable for basic routing, but you would need more than 2 GB of memory to manage a large routing table for a corporate network or to run a full IDS/IPS rule set with deep packet inspection.

Multi-OS Compatibility

The HUNSN RS16 supports FreeBSD based router systems, Linux distributions, and Windows OS, including specific compatibility with pfSense, Untangle, and OPNsense. This flexibility allows you to choose the open-source firewall operating system that fits your specific administrative requirements.

Because the hardware supports OPNsense and pfSense, you can deploy these systems to manage your network security. However, because the 2 GB of RAM is at the lower end of the requirements for these platforms, you should prioritize a configuration that does not rely on heavy memory-intensive plugins or large amounts of active states.

Common Buyer Jobs Checked Against the HUNSN Firewall’s Specs

The HUNSN Firewall against the jobs buyers ask about, worked out from its listed RAM capacity and a typical need for each job.

How the HUNSN Firewall Compares to Other Network Appliances

The HUNSN RS16 provides a balance of high-speed connectivity and compact 1U form factor for network appliance deployment.

Comparison with Similar Products

The HUNSN RS16 offers a lower price point than the OPNsense RS13 Z87 Core I7 4770, which costs $290 more.

• The OPNsense RS13 Z87 Core I7 4770 provides 16 GB of RAM, which is larger than the 2 GB on the HUNSN RS16.
• The HUNSN RS11k Intel I3 3110M costs $330 less than the HUNSN RS16.
• The Firewall provides 16 GB of RAM, a larger capacity than the 2 GB on the HUNSN RS16.
• The HUNSN RS11k Intel I7 3520M is $191 cheaper than the HUNSN RS16.
• The OPNsense HUNSN RS42 Intel I3 2328M is $210 cheaper than the HUNSN RS16.
• The HUNSN RS16 is the 1st highest-rated of the 2 products in this comparison, though it holds a 5.0 average from only 1 buyer rating.

If you require more than 2 GB of memory to manage large routing tables or IDS/IPS rules, the OPNsense RS13 Z87 Core I7 4770 is the better pick.

You can find our full review of the RS07-2350M-232 Firewall to see how its performance meets your specific needs.

For more details on high-density hardware, see the RS18k-J4125-8128 Firewall spec breakdown.

Where This Price Sits

The 32 GB memory storage capacity on the HUNSN RS16 provides space for system logs and updates, though the specific amount of storage required for long-term logging is not stated. Because the 2 GB RAM memory installed size is at the lower end of the range for multi-VLAN office firewalls, you may find it sufficient for basic routing but limited for complex configurations. This 2 GB capacity is not enough to manage a large routing table for a corporate network, which typically requires 4 to 8 GB. It also falls short of the 8 GB needed to maintain a high-speed VPN tunnel for 50 concurrent users or to manage a large number of active states for busy public Wi-Fi. For users requiring a full IDS/IPS rule set with deep packet inspection, the 2 GB of RAM is not enough to meet the 8 to 16 GB requirement.

The $774.99 price for the HUNSN RS16 sits $117 above the $658 average of the similar network appliance products we compared. At this price point, you receive a 1U form factor and 10 Gigabit Intel 82599es optical ports, which provide high-speed fiber connectivity. However, you give up the higher memory capacities found in some other options, which limits the device to simpler networking tasks. This product is the right buy if you need a 1U rack-mounted appliance with 10 Gigabit optical support for a small-scale environment where high-capacity RAM is not a priority.

From Delivery to First Use with This Network Appliance

Setting up the HUNSN Firewall

You must have a 150W power source available to provide electricity to the HUNSN Firewall before you begin the installation.

1. Unpack the HUNSN Firewall and the included power cord.
2. Secure the 1U unit into a 19-inch rack using a Rack Mount Kit (which must match the 1U height of the chassis).
3. Connect the power cord to the unit and a grounded outlet.
4. Plug the 6 x Intel Gigabit LAN cables into your network switches.
5. Connect the 2 x 10 Gigabit Intel 82599es optical ports to your fiber backbone using SFP+ Transceivers (which must be compatible with the 10 Gigabit Intel 82599es standard).

Verifying warranty terms and hardware recognition during first use

Warranty terms and support availability differ by seller and country.

• Confirm the 32 GB memory storage capacity is fully recognized by the OS to ensure you have the expected space for routing tables.
• Verify the Intel i7 4770 processor is recognized by your software to ensure you can run complex IDS/IPS rules.
• Check that the dedicated turbo silent cooling fan is spinning freely to prevent thermal throttling during high-traffic periods.
• Test the VGA output port to ensure the management interface is accessible on a secondary monitor.

Power on the device and verify the 2 GB of RAM is active in the BIOS before you finalize the setup and remove the shipping protections.

The HUNSN Firewall: Remaining Questions

How 2 GB of RAM affects small office firewall performance

The HUNSN Firewall states 2 GB of RAM, which provides the amount of volatile memory available for active data like routing tables and active connections. This 2 GB capacity is sufficient to run a firewall in a small office with multiple VLANs, but it is not enough to manage a large routing table for a corporate network. Because the HUNSN Firewall provides 2 GB of RAM, it also lacks the memory required to maintain a high-speed VPN tunnel for 50 concurrent users or to manage a large number of active states for a busy public Wi-Fi. For users requiring a full IDS/IPS rule set with deep packet inspection, which typically requires 8 to 16 GB, this 2 GB limit will prevent those rules from running effectively. Choosing a device with insufficient memory for your specific traffic volume can result in high latency or dropped packets, requiring a hardware replacement to resolve.

Is the 2GB of RAM enough for a high-traffic environment?

No, the 2GB of RAM on the HUNSN Firewall is not enough for a high-traffic environment because it falls below the 8 GB requirement for managing large numbers of active states. While it handles basic small office routing, a high-traffic environment will likely experience RAM exhaustion, which prevents the management of complex routing tables or IDS/IPS rules. You should select a model with higher memory if your network requires deep packet inspection or heavy VPN usage.

Is the HUNSN Firewall Right for You?

Who the HUNSN Firewall suits and the jobs it is the wrong choice for, listed below with the reason for each.

High-speed fiber users should look at the best OPNsense firewall with SFP+.

Where to Buy This Network Appliance

The HUNSN Firewall sat at $774.99 in the listing data from November 2026; the price you see at checkout can differ.

Network appliances are sold by the retailers below – we do not track which of them has the HUNSN Firewall in stock, so check availability and the current price with the retailer before making a trip.

• Ubiquiti Store (online only) — specialist focus on enterprise networking gear
• Synology (online only) — specialized ecosystem for network storage and appliances
• Amazon (online and physical stores) — wide selection of third-party brands and fast shipping
• B&H Photo Video (online and physical stores) — specialist staff and reliable business accounts
• Newegg (online only) — extensive range of networking hardware and components
• Micro Center (online and physical stores) — in-store availability and hands-on testing
• PCPartPicker (online only) — price comparison and compatibility checking

Final Verdict on the HUNSN Firewall

You should choose the HUNSN RS16 if you need a 1U network appliance for a small office that requires a 10 Gigabit Intel 82599es optical port for high-speed connectivity. This unit is available for around $774.99.

The 2 GB of RAM allows the HUNSN RS16 to run a firewall in a small office with multiple VLANs, though this amount of memory is not enough to manage a large routing table for a corporate network or to run a full IDS/IPS rule set with deep packet inspection. While the 5.0 rating comes from 1 buyer, a sample this small settles nothing regarding long-term reliability.

The HUNSN RS16 features 32 GB of memory storage capacity and includes a dedicated turbo silent cooling fan to manage heat during operation. It supports Intel AES new instructions, which are hardware instructions that accelerate the encryption used in VPNs and secure data transfers.

The device is available for $774.99.

The 32 GB of memory storage capacity provides a significant amount of space for system data and local storage compared to the 2 GB of active RAM.

Skip it if: You need to manage a high-speed VPN tunnel for 50 concurrent users or require a large routing table, as the 2 GB of RAM is insufficient for those tasks.