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The 8 Best network security appliances of 2025

Are you trying to find network security appliances among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling network security appliances on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 23 hours of research and did 23 network security appliances tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best network security appliances you can buy today

No. 1
SonicWall TZ270 Network Security Appliance (02-SSC-2821)
  • The latest SonicWall TZ270 series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape
  • Ensure seamless communication as stores talk to HQ via easy VPN connectivity which allows IT administrators to create a hub and spoke configuration for the safe transport of data between all locations
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN Interfaces: 64 | Access points supported (maximum): 16
No. 2
Cisco ASA Security Appliance Hands-On Training for Accidental Administrator: Student Exercise Manual
  • Crawley, Don R. (Author)
  • English (Publication Language)
  • 56 Pages - 06/23/2016 (Publication Date) - soundtraining.net press (Publisher)
No. 3
SonicWall TZ270 Wireless AC Network Security Appliance (02-SSC-2823)
  • The latest SonicWall TZ270W series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape
  • Ensure seamless communication as stores talk to HQ via easy VPN connectivity which allows IT administrators to create a hub and spoke configuration for the safe transport of data between all locations
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN Interfaces: 64 | Access points supported (maximum): 16
No. 4
SonicWall TZ400 Network Security Appliance 01-SSC-0213
  • Flexible security solution that offers a unified security solution to small to mid-size organizations
  • Blocks malware and zero-day threats with both on-box and cloud-based Advanced Threat Prevention
  • Zero-Touch Deployment allows for easy configuration and management, all accessible through the cloud
  • Includes a 1 year limited manufacturer warranty
  • Single-pass inspection: A single-pass DPI architecture simultaneously scans for malware, intrusions and application identification, drastically reducing DPI latency and ensuring that all threat information is correlated in a single architecture.
No. 6
SonicWall TZ670 Network Security Appliance (02-SSC-2837)
  • The SonicWall TZ670 is the first desktop-form-factor next-generation firewall (NGFW) with 10 Gigabit Ethernet interfaces.
  • Designed for mid-sized organizations and distributed enterprise with SD-Branch locations, the TZ670 delivers industry-validated security effectiveness with best-in-class price performance.
  • TZ670 NGFWs address the growing trends in web encryption, connected devices and high-speed mobility by delivering a solution that meets the need for automated, realtime breach detection and prevention.
  • The TZ670 is highly scalable, with high port density of 10 ports. It features both in-built and an expandable storage of up to 256GB, that enables various features including logging, reporting, caching, firmware backup and more.
  • Deployment of TZ670 is further simplified by Zero-Touch Deployment, with the ability to simultaneously roll out these devices across multiple locations with minimal IT support.
No. 7
SonicWall TZ370 Network Security Appliance (02-SSC-2825)
  • The latest SonicWall TZ370 series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape
  • Ensure seamless communication as stores talk to HQ via easy VPN connectivity which allows IT administrators to create a hub and spoke configuration for the safe transport of data between all locations
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN Interfaces: 128 | Access points supported (maximum): 16
No. 8
SonicWall TZ470 Network Security Appliance (02-SSC-2829) Bundled with a SonicWall 3 Year 8x5 Support for TZ470 (02-SSC-6437)
  • The latest SonicWall TZ470 series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass.
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape.
  • SonicWall 8x5 Support provides chat, email, web, and telephone support for technical assistance | Dynamic Support is designed for customers who need continued protection through ongoing firmware updates and advanced technical support
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2x10GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN interfaces: 128 | Access points supported (maximum): 36
No. 9
SonicWall TZ570 Network Security Appliance High Availability (02-SSC-5694)
  • High Availability (HA) allows two identical SonicWALL appliances running SonicOS to be configured to provide a reliable, continuous connection. One SonicWALL device is configured as the Primary unit, and an identical SonicWALL device is configured as the Secondary unit. If the Primary SonicWALL fails, the Secondary SonicWALL takes over to secure a reliable connection between the protected network and the Internet. Two appliances configured in this way function as a High Availability Pair.
  • SonicWall TZ570 High Availability (02-SSC-5694)
  • The TZ570 is designed for mid-sized organizations and distributed enterprise with SD-Branch locations, the TZ570 delivers industry-validated security effectiveness with best-in-class price performance. TZ570 NGFWs address the growing trends in web encryption, connected devices and high-speed mobility by delivering a solution that meets the need for automated, realtime breach detection and prevention.
  • Deployment of TZ570 is further simplified by Zero-Touch Deployment, with the ability to simultaneously roll out these devices across multiple locations with minimal IT support.
  • The SonicOS architecture is at the core of TZ NGFWs. TZ570 is powered by the feature rich SonicOS 7.0 operating system with new modern looking UX/UI, advanced security, networking and management capabilities. TZ570 features integrated SD-WAN, TLS 1.3 support, realtime visualization, high-speed virtual private networking (VPN) and other robust security features.
No. 10
SonicWall TZ470 Network Security Appliance (02-SSC-2829)
  • The latest SonicWall TZ470 series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape
  • Ensure seamless communication as stores talk to HQ via easy VPN connectivity which allows IT administrators to create a hub and spoke configuration for the safe transport of data between all locations
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2x10GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN interfaces: 128 | Access points supported (maximum): 32
No. 11
SonicWall TZ370 Wireless AC Network Security Appliance (02-SSC-2827)
  • The latest SonicWall TZ370W series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape
  • Ensure seamless communication as stores talk to HQ via easy VPN connectivity which allows IT administrators to create a hub and spoke configuration for the safe transport of data between all locations
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN Interfaces: 128 | Access points supported (maximum): 16
SaleNo. 12
FORTINET FortiGate-81F Network Security Appliance (FG-81F)
  • FORTINET FortiGate-81F Next-Gen Firewall (FG-81F)
  • Protects against malware, exploits, & malicious websites in both encrypted & non-encrypted traffic, prevents and detects against known attacks using threat intelligence from FortiGuard Labs security services. Engineered for Innovation using security processors (SPU) to deliver the industry’s best threat protection performance and ultra-low latency, provides industry-leading performance and protection for SSL encrypted traffic including the first firewall vendor to provide TLS 1.3 deep inspection
  • Engineered for Innovation using Fortinet’s purpose-built security processors (SPU) to deliver the industry’s best threat protection performance and ultra-low latency, provides industry-leading performance and protection for SSL encrypted traffic including the first firewall vendor to provide TLS 1.3 deep inspection
  • Advanced routing, Scalable VPN, multi-cast and IPV4/IPV6forwarding powered by purpose-built network processors, Enables Fortinet and Fabric-ready partners’ products to provide broader visibility, integrated end-to-end detection, threat intelligence sharing, and automated remediation, Reduce the complexity and maximize your ROI by integrating threat protection security capabilities into a single highperformance network security appliance, powered by Fortinet’s Security Processing Unit (SPU)
  • Firewall: 10 Gbps | IPS: 1.4 Gbps | NGFW: 1 Gbps | Threat Protection: 900 Mbps | Interfaces: Multiple GE RJ45, Variants with internal storage and LAN Bypass
No. 13
Cisco ASA5508-K9 Network Security/Firewall Appliance (Renewed)
  • Item Package Dimension: 21.899999977662L X 15.399999984292W X 6.899999992962H Inches
  • Item Package Weight - 11.49931158592 Pounds
  • Item Package Quantity - 1
  • Product Type - Networking Router
No. 14
SonicWall TZ370 Network Security Appliance + Rackmount.IT Rackmount Kit RM-SW-T10 (02-SSC-2825 + RM-SW-T10)
  • The latest SonicWall TZ370 series, are the first desktop form factor nextgeneration firewalls (NGFW) with 10 or 5 Gigabit Ethernet interfaces. The series consist of a wide range of products to suit a variety of use cases.
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Drive business growth by investing in next-gen appliances with multi-gigabit and advanced security features, to future-proof against the changing network and security landscape
  • Ensure seamless communication as stores talk to HQ via easy VPN connectivity which allows IT administrators to create a hub and spoke configuration for the safe transport of data between all locations
  • Hardware: Operating system: SonicOS 7.0 | Interfaces: 8x1GbE, 2 USB 3.0, 1 Console | Management: Network Security Manager, CLI, SSH, Web UI, GMS, REST APIs | VLAN Interfaces: 128 | Access points supported (maximum): 16
No. 15
Firewall 2.5GbE, Firewall PC, Network Security Micro Appliance, Router PC, Celeron J4125, AES-NI, HDMI, RS232 COM, 2USB3.0, 4RJ45 LAN, SIM Slot, Compatible with OPNsense etc(8GB RAM/256GB SSD)
  • 【Fanless Mini PC Firewall】➨The firewall micro mini pc pre-installed windows 10 pro 64-bit. Equipped with quad Cores Celeron J4125(4M Cache, up to 2.70 GHz), it supports AES-NI. It also supports other Open source system, such as Linux, RouterOS, X86 OpenWrt, Linux iptables, Untangle Panabit and other popular open-source software solutions. Support Auto Power On, Wake on LAN, RTC wake and PXE boot ("DEL" key to enter BIOS).
  • 【I/O Specifications】➨The mini pc comes with 4 x I225-V 2.5GbE Nic Ethernet ports, 2 x USB3.0 ports, 4 x USB2.0, 1 x HDMI, 1 x DB9 RS232 Com port, 1 x DC port, suitable for network server, LAN Or WAN router, VPN device, DHCP server, DNS server and IDS/IPS, and can also be configured as a commercial firewall.
  • 【Network Applicance】➨The Firewall hardware is an ideal choice for various scenarios, such as network security products, used as a virtual private network and network firewall. It can be applied to various scenarios such as corporate offices, soft routing, hotels/restaurants, shopping malls, schools, etc.
  • 【4G WIFI network connection】➨Mini computer motherboard support SIM card slot, enjoy 3G&4G WIFI network, access the Internet from anywhere(4G module not included by default). The mini desktop computer built in DDR4, can be up to 32GB, 1 x mSATA slot, Can be expanded up to 1TB. Optional HDD (the motherboard supports the expansion of a 2.5-inch hard drive).
  • 【Fanless Industrial PC】➨The package included 1 x Fanless PC, 2 x WiFi antenna, 1 x Power Adapter, 1 x HDMI Cable, 1 x User Manual. Aluminium alloy 135 x 127 x 39mm. Fanless design, quiet operation. Running 24/7. TDP: 10W. If you have any question with the product, please contact us via Amazon, we have a professional and efficient sales team to serve you diligently. Buy with confidence.
SaleNo. 16
SonicWall TZ570 Network Security Appliance and 2YR Secure Upgrade Plus Essential Edition (02-SSC-5662)
  • SonicWall TZ570 Appliance with 2Yr of Essential Protection Services Suite. Essential Protection Service Suite includes Capture Advanced Threat Protection, Gateway Anti-Virus, Anti-Spyware, Intrusion Prevention, Application Firewall Service, Content Filtering Premium Services, Anti-Spam and 24x7 Support with firmware.
  • Save space and money with an integrated gateway security solution with firewalling, switching and wireless capabilities
  • Reduce complexity and get the business running without relying on IT personnel with easy onboarding using SonicExpress App and Zero-Touch Deployment, and easy management through a single pane of glass
  • Attain business continuity by providing failover to cellular connectivity
  • Protect network from attacks with a comprehensive security solution that incorporates VPN, IPS, CFS, AV and much more
  • English (Publication Language)
SaleNo. 17
FORTINET FortiWiFi-40F Network Security Appliance (FWF-40F)
  • FORTINET FortiWiFi-40F Hardware (FWF-40F)
  • The FWF-40F provides a fast and secure SD-WAN solution in a compact fanless desktop form factor for enterprise branch offices and mid-sized businesses; Protects against cyber threats with system-on-a-chip acceleration and industry-leading secure SD-WAN in a simple, affordable, and easy to deploy solution
  • Full visibility into users, devices, applications across the entire attack surface and consistent security policy enforcement irrespective of asset location; Automatically block threats on decrypted traffic using the Industry’s highest SSL inspection performance, including the latest TLS 1.3 standard with mandated ciphers
  • Identifies thousands of applications inside network traffic for deep inspection and granular policy enforcement; Protects against malware, exploits, and malicious websites in both encrypted and non-encrypted traffic
  • Firewall: 5 Gbps | IPS: 1 Gbps | NGFW: 800 Mbps | Threat Protection: 600 Mbps | Interfaces: Multiple GE RJ45 | WiFi variants
SaleNo. 18
Network Security, Firewalls, and VPNs (Issa)
  • Stewart, J. Michael (Author)
  • English (Publication Language)
  • 481 Pages - 10/29/2020 (Publication Date) - Jones & Bartlett Learning (Publisher)
SaleNo. 19
NETGEAR Wi-Fi Range Extender EX3700 - Coverage Up to 1000 Sq Ft and 15 Devices with AC750 Dual Band Wireless Signal Booster & Repeater (Up to 750Mbps Speed), and Compact Wall Plug Design
  • EXTENDED WIRELESS COVERAGE: Adds Wi-Fi range coverage up to 1000 sq ft, and connects up to 15 devices such as laptops, smartphones, speakers, IP cameras, tablets, IoT devices, and more..Connectivity protocol:Ethernet,Wi-Fi
  • AC750 WI-FI SPEED: Provides up to 750Mbps performance using dual-band and patented FastLane(TM) technology.
  • UNIVERSAL COMPATIBILITY: Works with any wireless router, gateway, or cable modem with Wi-Fi.
  • WIRED ETHERNET PORT: Simply plug in game consoles, streaming players, or other nearby wired devices using the one 10/100M port for maximum speed.
  • SAFE & SECURE: Supports WEP and WPA/WPA2 wireless security protocols.
  • SIMPLE TO SETUP: Press the WPS button to connect to your router. Use the NETGEAR WiFi Analyzer app for optimal location.
No. 20
Super VPN
  • FEATURES
  • ✔ FREE We offer free servers, 100% free forever!
  • ✔ PRIVACY No logs, surf the web anonymously and privately.
  • ✔ SIMPLE no registration required, just one-click to connect.
  • ✔ UNLIMITED Truly unlimited, no session, bandwidth limitations.
  • ✔ FAST We provide ultra-fast IPLC servers to you.
  • ✔ MULTIPLE PLATFORM SUPPORT Easy to use on Android, iOS, Windows, Linux, and more.
  • Chinese (Publication Language)

How to choose a good network security appliances

Does the idea of finding a fantastic network security appliances make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in network security appliances. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top network security appliances products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top network security appliances on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top network security appliances brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top network security appliances based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the network security appliances were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good network security appliances, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your network security appliances.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting network security appliances for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our network security appliances. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what network security appliances should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on network security appliances.