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WatchGuard Firebox M4850
Entry point to the High Rackmount family: 66.5 Gbps firewall throughput, 25 GbE uplinks, an OCP 3.0 expansion bay and fully redundant hardware.
- 19.10 Gbps UTM throughput with full scanning enabled
- 66.5 Gbps firewall throughput and 37,000,000 concurrent connections
- 8 × 1 Gb RJ45, 4 × 1 Gb SFP, 6 × 10 Gb SFP+ and 2 × 25 Gb SFP28
- Optional OCP 3.0 module: 4 × 2.5 Gb RJ45, 4 × 25 Gb SFP28 or 2 × 100 Gb QSFP28
- Dual hot-swappable power supplies and redundant hot-swap fan modules
Hardware & subscription options
Every orderable WatchGuard part number for this appliance, grouped by licensing tier. Pick the line you need and we will quote it — hardware, licence term and support in one place.
Appliance Only
The Firebox hardware on its own, with no security subscription attached. Choose this only if you are adding the unit to an existing licence pool.
WatchGuard Firebox M4850 Appliance
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WatchGuard Firebox M4850 Appliance Only #WGM485000Get a Quote
Basic Security Suite
The foundation bundle: intrusion prevention, gateway antivirus, URL filtering, application control, spam blocking and reputation lookup, with Standard Support included.
WatchGuard Basic Security Suite (Service Subscription - Hardware Required)
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WatchGuard Basic Security Suite for Firebox M4850 - 1 Year #WGM48500701Get a Quote
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WatchGuard Basic Security Suite for Firebox M4850 - 3 Year #WGM48500703Get a Quote
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WatchGuard Basic Security Suite for Firebox M4850 - 5 Year #WGM48500705Get a Quote
WatchGuard Trade Up Program - Basic Security Suite (Service Subscription - Hardware Required)
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Trade Up to WatchGuard Basic Security Suite for Firebox M4850 - 3 Year #WGM48502003Get a Quote
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Trade Up to WatchGuard Basic Security Suite for Firebox M4850 - 5 Year #WGM48502005Get a Quote
WatchGuard Basic Security Suite Renewal / Upgrade (Service Subscription - Hardware Required)
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WatchGuard Basic Security Suite for Firebox M4850 - 1 Year #WGM485331Get a Quote
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WatchGuard Basic Security Suite for Firebox M4850 - 3 Year #WGM485333Get a Quote
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WatchGuard Basic Security Suite for Firebox M4850 - 5 Year #WGM485335Get a Quote
Prime Security Suite
WatchGuard's top licensing tier, extending Total Security with the newest advanced detection and response services.
WatchGuard Prime Security Suite (Service Subscription - Hardware Required)
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WatchGuard Prime Security Suite for Firebox M4850 - 1 Year #WGM4850481Get a Quote
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WatchGuard Prime Security Suite for Firebox M4850 - 3 Year #WGM4850483Get a Quote
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WatchGuard Prime Security Suite for Firebox M4850 - 5 Year #WGM4850485Get a Quote
WatchGuard Trade Up Program - Prime Security Suite (Service Subscription - Hardware Required)
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Trade Up to WatchGuard Prime Security Suite for Firebox M4850 - 3 Year #WGM4850493Get a Quote
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Trade Up to WatchGuard Prime Security Suite for Firebox M4850 - 5 Year #WGM4850495Get a Quote
WatchGuard Prime Security Suite Renewal / Upgrade (Service Subscription - Hardware Required)
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WatchGuard Prime Security Suite for Firebox M4850 - 1 Year #WGM485361Get a Quote
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WatchGuard Prime Security Suite for Firebox M4850 - 3 Year #WGM485363Get a Quote
Total Security Suite
Everything in Basic plus APT Blocker, ThreatSync XDR, DNSWatch, IntelligentAV, data loss prevention and Gold Support.
WatchGuard Total Security Suite (Service Subscription - Hardware Required)
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WatchGuard Total Security Suite for Firebox M4850 - 1 Year #WGM48500801Get a Quote
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WatchGuard Total Security Suite for Firebox M4850 - 3 Year #WGM48500803Get a Quote
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WatchGuard Total Security Suite for Firebox M4850 - 5 Year #WGM48500805Get a Quote
WatchGuard Trade Up Program - Total Security Suite (Service Subscription - Hardware Required)
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Trade Up to WatchGuard Total Security Suite for Firebox M4850 - 1 Year #WGM48502101Get a Quote
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Trade Up to WatchGuard Total Security Suite for Firebox M4850 - 3 Year #WGM48502103Get a Quote
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Trade Up to WatchGuard Total Security Suite for Firebox M4850 - 5 Year #WGM48502105Get a Quote
WatchGuard Total Security Suite Renewal / Upgrade (Service Subscription - Hardware Required)
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WatchGuard Total Security Suite for Firebox M4850 - 1 Year #WGM485351Get a Quote
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WatchGuard Total Security Suite for Firebox M4850 - 3 Year #WGM485353Get a Quote
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WatchGuard Total Security Suite for Firebox M4850 - 5 Year #WGM485355Get a Quote
Support
Standalone support contracts and hardware replacement coverage.
WatchGuard Support (Service Subscription - Hardware Required)
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WatchGuard Standard Support for Firebox M4850 - 1 Year #WGM48500601Get a Quote
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WatchGuard Standard Support for Firebox M4850 - 3 Year #WGM48500603Get a Quote
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WatchGuard Standard Support for Firebox M4850 - 5 Year #WGM48500605Get a Quote
WatchGuard Support Renewal / Upgrade (Service Subscription - Hardware Required)
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WatchGuard Standard Support for Firebox M4850 - 1 Year #WGM485201Get a Quote
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WatchGuard Standard Support for Firebox M4850 - 3 Year #WGM48540103Get a Quote
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WatchGuard Standard Support for Firebox M4850 - 5 Year #WGM485205Get a Quote
WatchGuard Support Renewal / Upgrade (Service Subscription - Hardware Required)
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WatchGuard Gold Support for Firebox M4850 - 1 Year #WGM485221Get a Quote
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WatchGuard Gold Support for Firebox M4850 - 3 Year #WGM485223Get a Quote
WatchGuard Support (Service Subscription - Hardware Required)
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WatchGuard Premium 4-Hour Replacement for Firebox M4850 - 1 Year #WGM485801Get a Quote
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WatchGuard Premium 4-Hour Replacement for Firebox M4850 - 3 Year #WGM485803Get a Quote
Add-On Services
Individual services that can be layered onto an existing licence.
WatchGuard Add-On Services (Service Subscription - Hardware Required)
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WatchGuard High Availability for Firebox M4850 - 1 Year #WGM48501601Get a Quote
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WatchGuard High Availability for Firebox M4850 - 3 Year #WGM48501603Get a Quote
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WatchGuard High Availability for Firebox M4850 - 5 Year #WGM48501605Get a Quote
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WatchGuard APT Blocker for Firebox M4850 - 1 Year #WGM485171Get a Quote
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WatchGuard APT Blocker for Firebox M4850 - 3 Year #WGM485173Get a Quote
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WatchGuard Cloud 1-Month Data Retention for Firebox M4850 - 1 Year #WGM48521801Get a Quote
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WatchGuard Cloud 1-Month Data Retention for Firebox M4850 - 3 Year #WGM48521803Get a Quote
Accessories
Mounting hardware and physical accessories for this appliance.
WatchGuard Accessories
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WatchGuard Redundant Power Supply for Firebox M4850 / M5850 / M6850 #WG9042Get a Quote
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WatchGuard 2-port 100GbE QSFP28 OCP Module for Firebox M4850 / M5850 / M6850 #WG9043Get a Quote
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WatchGuard 4-port 25GbE SFP28 OCP Module for Firebox M-Series 5th Gen #WG9044Get a Quote
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WatchGuard 4-port 2.5GbE RJ45 OCP Module for Firebox M-Series 5th Gen #WG9045Get a Quote
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WatchGuard Replacement Redundant Fan for Firebox M4850 / M5850 / M6850 #WG9046Get a Quote
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WatchGuard Rack Rails for Firebox M4850 / M5850 / M6850 #WG9047Get a Quote
WatchGuard Firebox M4850 Specifications
WatchGuard published maximums, measured under the test conditions noted below.
Throughput
| Firewall (UDP 1518) | 66.50 Gbps |
|---|---|
| Firewall (IMIX) | 18.50 Gbps |
| UTM (full scan) | 19.10 Gbps |
| UTM (fast scan) | 23.50 Gbps |
| Antivirus | 27.00 Gbps |
| IPS (full scan) | 25.00 Gbps |
| IPS (fast scan) | 32.00 Gbps |
| HTTPS Content Inspection IPS (full scan) | 8.80 Gbps |
| VPN (UDP 1518) | 18.9 Gbps |
| VPN (IMIX) | 4.1 Gbps |
Capacity
| Network Interfaces | 8 × 1 Gbps RJ45, 4 × 1 Gbps SFP, 6 × 10 Gbps SFP+, 2 × 25 Gbps SFP28 |
|---|---|
| OCP 3.0 Expansion Bay | Optional: 4 × 2.5 Gbps RJ45, 4 × 25 Gbps SFP28 or 2 × 100 Gbps QSFP28 |
| I/O Interfaces | 1 Serial / 2 USB-A 3.0 |
| Concurrent connections | 37,000,000 |
| Concurrent connections (proxy) | 2,500,000 |
| New connections per second | 260,000 |
| VLANs | Unrestricted |
| WSM licenses (included) | 4 |
| EDR Core Sensors included | 250 |
VPN Tunnels
| Branch Office VPN | 5,000 |
|---|---|
| Mobile VPN | 10,000 |
Security Services
| Firewall | Stateful packet inspection, TLS decryption, proxy firewall |
|---|---|
| Application Proxies | HTTP, HTTPS, FTP, DNS, TCP/UDP, POP3S, SMTPS, IMAPS and Explicit Proxy |
| Threat Protection | DoS attacks, fragmented & malformed packets, blended threats |
| Filtering Options | Browser Safe Search, Google for Business |
VPN
| Site-to-Site VPN | IKEv2, IPSec, Policy and Route Based Tunnels, TLS hub and spoke |
|---|---|
| Remote Access VPN | IKEv2, IPSec, L2TP, TLS |
Visibility
| Logging and notifications | WatchGuard Cloud & Dimension, Syslog, SNMP v2/v3 |
|---|---|
| Reporting | WatchGuard Cloud includes over 100 pre-defined reports, executive summary and visibility tools |
Networking
| SD-WAN | Multi-WAN failover, dynamic path selection, jitter/loss/latency measurement |
|---|---|
| Dynamic Routing | RIP, OSPF, BGP |
| High Availability | Active/passive, active/active |
| QoS | 802.1Q, DSCP, IP Precedence |
| Traffic Management | By policy or application |
| IP Address Assignment | Static, DHCP (server, client, relay), PPPoE, DynDNS |
| NAT | Static, dynamic, 1:1, IPSec traversal, policy-based |
| Link Aggregation | 802.3ad dynamic, static, active/backup |
Physical & Power
| Product Dimensions | 20.25" × 17.32" × 1.73" (515 × 440 × 44 mm) |
|---|---|
| Shipping Dimensions | 29.25" × 23.25" × 9" (751 × 599 × 237 mm) |
| Product Weight | 19.84 lbs (9 kg) |
| Shipping Weight | 36.38 lbs (16.5 kg) |
| Power Consumption | 374.1 W |
| Input Power | Dual hot-swappable redundant supplies, 2 × C14 inlet, 100-240 VAC 50-60 Hz, 10 A max |
| Fan Operation | Redundant hot-swappable fan modules, one hot-swappable at a time |
| Operating Temperature | 32–104°F (0–40°C), humidity 5% to 90% non-condensing |
| Storage Temperature | 14–158°F (-10–70°C), humidity 5% to 90% non-condensing |
| Altitude | 0 to 9,843 ft at 95°F (3,000 m at 35°C) |
| MTBF | To be confirmed by WatchGuard |
Certifications
| Security | Pending: CC, FIPS 140-3 |
|---|---|
| Safety | NRTL / CB |
| Network | IPv6 Ready Gold (routing) |
| Hazardous Substance Control | WEEE, RoHS, REACH |
Throughput rates are determined using multiple flows through multiple ports and will vary depending on the environment and configuration. Max firewall throughput tested via direct connection using 1518-byte UDP frames based on RFC 2544 methodology, on Fireware 2025.1.
UTM throughput is measured using HTTP traffic with AV, IPS and Application Control enabled, and does not account for all security services available on the appliance.
WatchGuard lists MTBF for this model as TBD; no figure has been published yet.
The source catalogue lists no NDR subscription for this model, and APT Blocker, Cloud Data Retention and Premium Replacement in 1 and 3-year terms only. Ask us if you need a 5-year term.
The three Standard Support renewal part numbers do not follow one numbering pattern in the source catalogue. We confirm every part number before quoting.
Part numbers are WatchGuard catalogue SKUs and are listed for reference. Availability and lead time are confirmed at quote.
Firebox M4850
Entry point to the High Rackmount family: 66.5 Gbps firewall throughput, 25 GbE uplinks, an OCP 3.0 expansion bay and fully redundant hardware.
Secure Performance for Large Sites and Distributed Enterprises
Designed for organizations that have outgrown traditional midrange firewalls, the Firebox M4850 delivers high performance security for demanding network environments. Purpose built as the entry point to WatchGuard's High Rackmount family, the M4850 combines strong firewall, VPN, UTM, and HTTPS inspection performance with integrated multi speed connectivity and redundant hardware. It enables organizations to step into high rackmount deployments without introducing unnecessary complexity or enterprise level cost.
Strong Security at Every Layer
Uniquely architected to be the industry's smartest, fastest, and most effective network security products, WatchGuard solutions deliver in-depth defenses against advanced malware, ransomware, botnets, trojans, viruses, drive-by downloads, data loss, phishing, and much more.
Interested in the WatchGuard Firebox M4850?
Simply tell us your deployment needs and we will confirm availability, lead time and licence type, then get back to you with a quote.
Request a Quote