SOPHOS VIRTUAL FIREWALL - 4 CORES & UNL RAM

Sophos Virtual Firewall 4 Cores. The full Sophos firewall, no appliance required.

Run the same Sophos Firewall OS that powers the XGS hardware line, deployed as a virtual appliance. This tier covers up to four CPU cores and, now that Sophos has removed RAM limits on virtual licenses, uses every gigabyte of memory you assign the VM.

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Virtual Firewall (4 Cores) Key Specs

CPU Cores

Up to 4 vCPU

Memory

Unlimited RAM (all assigned)

Hypervisors

VMware, Hyper-V, KVM, Citrix

VPN

Unlimited remote access and site-to-site

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Specifications

Virtual Firewall (4 Cores) at a Glance

Deployment

Deploy on VMware ESXi, Microsoft Hyper-V, KVM, or Citrix on-premises, or spin it up in AWS and Microsoft Azure with bring-your-own-license or pay-as-you-go. It also runs on Nutanix AHV or on your own Intel hardware as a software appliance. One SFOS image, the same features everywhere.

Licensing

The Base License turns on core firewall, routing, and Sophos Central management. Add a Standard or Xstream Protection bundle for the security services. Licensing is counted by CPU core only, so this tier caps at four vCPU while your RAM stays uncapped.

Performance

A virtual firewall scales with the resources you give it. Throughput tracks the host CPU, RAM, storage, and virtual NICs you allocate, plus which security features you switch on. There is no fixed hardware ceiling, so give it more and it does more.

Protection

You get the full Xstream architecture: streaming DPI, TLS 1.3 inspection, IPS, web and application control, and Security Heartbeat. Standard covers IPS and web filtering; Xstream adds zero-day sandboxing, DNS Protection, and Central orchestration.

Not sure which core count fits?

See every Sophos Virtual Firewall tier side by side, from a single core up to unlimited, and match cores to the traffic, users, and inspection load you need to cover.

Compare Virtual Firewall Tiers

Virtual Firewall (4 Cores) FAQ

Which hypervisors and clouds can I run the Sophos Virtual Firewall on?

VMware ESXi, Microsoft Hyper-V, KVM, and Citrix on-premises, plus AWS and Microsoft Azure in the cloud using bring-your-own-license or pay-as-you-go. It also supports Nutanix AHV and installs on your own Intel hardware as a software appliance. It is the same Sophos Firewall OS image with the same features across all of them.

What does the 4 cores and UNL RAM license actually cover?

It licenses up to four vCPU cores. Since Sophos removed RAM limits on virtual, software, and cloud licenses in March 2025, the firewall now uses all the memory you assign the VM with no cap. You size the cores and RAM in your hypervisor, and the license simply sets the ceiling on how many cores it will activate.

Is this the same firewall as the XGS hardware, or a lighter version?

It is the same Sophos Firewall OS and the same Xstream feature set as the XGS appliances. The difference is that it runs as software on your host instead of on a Sophos box, so its performance depends on the CPU, RAM, and virtual NICs you allocate rather than on fixed hardware.

What do I need to buy to make it work, and are there monthly fees?

You need the Base License plus a protection bundle, either Standard or Xstream, for the term you choose, usually 1, 2, or 3 years. A bring-your-own-license purchase has no separate monthly fee; you pay for the term up front. Support is included with the bundle and can be upgraded to Enhanced Plus if you want faster response.

How many cores should I pick for my environment?

Cores track to your traffic and inspection load, not just user count. Four cores suits a lot of small and mid-size sites, but TLS inspection, heavy VPN, and many VLANs all add work. Tell us your bandwidth, user count, and which features you plan to turn on, and a Sophos-certified rep will size it with you.

Let's size your Sophos Virtual Firewall

Tell us your platform, bandwidth, and which protection you need. As a Sophos Platinum Partner, Firewalls.com will confirm the right core count and bundle, then get you a quote the same day.

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Sophos SF SW/Virtual Appliance Base License only - UP TO 4 CORES & UNL RAM

Real-Time Threat Protection

Easy and Flexible Deployment

Single Point of Security Management

Patented Layer-8 Identity control
Specification #: 4 CORES & 6GB RAM
Manufacturer Part #: XV4C6Z00ZZPCAA

NOTICE: Sophos License & Renewal products can only be activated in the United States of America.
For Pricing, request a quote.

Product Details →
Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 1-year

Base License: Networking, Wireless, Xstream Architecture
Unlimited Remote Access VPN, Site-to-Site VPN, reporting

Manufacturer Part #: XU4C6Z12ZZPCAA.
NOTICE: Sophos License & Renewal products may only be activated in the United States of America.
For Pricing, request a quote.

Product Details →
Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 3-year

Base License: Networking, Wireless, Xstream Architecture
Unlimited Remote Access VPN, Site-to-Site VPN, reporting

Manufacturer Part #: XU4C6Z36ZZPCAA.
NOTICE: Sophos License & Renewal products may only be activated in the United States of America.
For Pricing, request a quote.

Product Details →
Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 5-year

Base License: Networking, Wireless, Xstream Architecture
Unlimited Remote Access VPN, Site-to-Site VPN, reporting

Manufacturer Part #: XU4C6Z60ZZPCAA.
NOTICE: Sophos License & Renewal products may only be activated in the United States of America.
For Pricing, request a quote.

Product Details →
Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 1-year

Real-Time Threat Protection

Easy and Flexible Deployment

Single Point of Security Management

Patented Layer-8 Identity control
Specification #: 4 CORES & 6GB RAM
Service Length #: 1 Year License
Manufacturer Part #: XZ4C6Z12ZZPCAA

NOTICE: Sophos License & Renewal products can only be activated in the United States of America.
For Pricing, request a quote.

Product Details →
Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 3-year

Real-Time Threat Protection

Easy and Flexible Deployment

Single Point of Security Management

Patented Layer-8 Identity control
Specification #: 4 CORES & 6GB RAM
Service Length #: 3 Year License
Manufacturer Part #: XZ4C6Z36ZZPCAA

NOTICE: Sophos License & Renewal products can only be activated in the United States of America.
For Pricing, request a quote.

Product Details →
Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 5-year

Real-Time Threat Protection

Easy and Flexible Deployment

Single Point of Security Management

Patented Layer-8 Identity control
Specification #: 4 CORES & 6GB RAM
Service Length #: 5 Year License
Manufacturer Part #: XZ4C6Z60ZZPCAA

NOTICE: Sophos License & Renewal products can only be activated in the United States of America.
For Pricing, request a quote.

Product Details →

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SOPHOS VIRTUAL FIREWALL - 4 CORES & UNL RAM

Sophos Virtual Firewall 4 Cores. The full Sophos firewall, no appliance required.

Virtual Firewall (4 Cores) at a Glance

Deployment

Licensing

Performance

Protection

Not sure which core count fits?

Virtual Firewall (4 Cores) FAQ

Let's size your Sophos Virtual Firewall

You'll always get our best prices when you're signed in!

Sophos SF SW/Virtual Appliance Base License only - UP TO 4 CORES & UNL RAM

Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 1-year

Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 3-year

Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 5-year

Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 1-year

Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 3-year

Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 5-year

Product Comparison

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SOPHOS VIRTUAL FIREWALL - 4 CORES & UNL RAM

Sophos Virtual Firewall 4 Cores. The full Sophos firewall, no appliance required.

Virtual Firewall (4 Cores) at a Glance

Deployment

Licensing

Performance

Protection

Not sure which core count fits?

Virtual Firewall (4 Cores) FAQ

Let's size your Sophos Virtual Firewall

You'll always get our best prices when you're signed in!

Sophos SF SW/Virtual Appliance Base License only - UP TO 4 CORES & UNL RAM

Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 1-year

Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 3-year

Sophos SF SW/Virtual with Standard Protection - 4 CORES & UNL RAM - 5-year

Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 1-year

Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 3-year

Sophos SF SW/Virtual with Xstream Protection - 4 CORES & UNL RAM - 5-year

Product Comparison

FAQ

Why Buy From Us?

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