New
Gateway3 4G 1SFP

Cloud-managed VPN Firewall with 4 x Gigabit (1x PoE+) Ethernet ports and one SFP slot

ESG320

Product Highlight

EnGenius ESG320 Cloud-Managed VPN Firewall is designed for cost-conscious SMBs, offering advanced features such as load balancing, dual-WAN, and secure site-to-site VPN. Seamlessly integrated with the EnGenius Cloud platform, it simplifies configuration and provides centralized management from anywhere. This high-performance solution delivers exceptional value by combining robust security, superior connectivity, and the flexibility to scale with growing business needs.

  • Simple, unified cloud management for any size business
  • Intuitive and centralized device visibility from anywhere
  • Dual GE WAN and Dual GE LAN for maximum performance
  • Dual-core 2.1 GHz processor for greater speed and power
  • Built-in load balancing and safeguards with dual-WAN and cellular failover
  • PoE+ port to power up a Wi-Fi AP, IP camera or IP phone
  • Stateful firewall with high-efficiency filtering and inspection to enhance security
  • High-speed and secure site-to-site VPN and client VPN
  • Quick self-healing VPN and VLAN setup for faster and easier deployments
  • Touchless system maintenance and automatic updates
  • Multiple passthrough and routing options
  • Captive portal with external radius capabilities
  • Integrated cloudbrink service to offer ZTNA solution

Hardware

CPU Processor

Dual Core

Operating Frequency

2.1GHz

Memory

4GB

Flash Storage

8GB

RJ-45 Interface

4x1G

SFP Interface

1xSFP

PoE Ports

1

PoE Standard

802.3 af/at

I/O Interfaces

1 x RJ-45 console
1 x USB 3.0

Mounting Method

Wall mount

Security

TPM

Network & Security

Firewall (SPI throughput)

3 Gbps

VPN throughput

900 Mbps

Max. Concurrent VPN Tunnels

100

Max. Concurrent VPN Users

50

Max. TCP Concurrent Sessions

1,000,000

Max VLAN

16

Firewall Features

Stateful Packet Inspection
Policy Rules
Port Forwarding
1:1 NAT
Allow Inbound Services
Layer 7 Application Firewall

Site-to-Site VPN

Mesh VPN / Hub-and-Spoke

Encryption

3DES, AES (256/192/128-bit)

Authentication

MD5, SHA1, SHA2 (256-bit)

Key Management

IKEv1 (x-auth, mode-config)
IKEv2 (EAP, configuration payload)

VPN Features

Site-to-Site VPN
Client VPN (IPsec / SecuPoint SSL)
Policy-based VPN
IPSec NAT traversal (NAT-T)
Dead Peer Detection (DPD)
Auto-VPN Connection
Auto NAT traversal

Operation mode

Routed / Passthrough

Multiple WANs

Dual

Bandwidth Limit

Per client / Per Interface

Traffic Load Balancing

WAN load balancing with WRR

Networking Features

Static Route
Multiple WANs
USB Cellular
User Authentication
PPPoE
VLAN Tagging
Captive Portal
Custom Splash Page
Dynamic Routing
Bandwidth Limit
Traffic Load Balancing
DHCP client/server/relay
Dynamic DNS support
Policy Based Routing

Security Service

CloudBrink

Environment & Physical

Power

54V / 1.2A

Operation Temperature

0°C to 40°C

Humidity (non-condensing)

5 to 95% non-condensing

Dimensions & Weight

Dimensions

Weight: 2.14 lbs. (0.97k g)
Length: 8.27” (210 mm)
Width: 7.07” (179.5 mm)
Height: 1.38” (35 mm)

Package Contents

Power adapter
Power cord
RJ-45 Console Cable
Wall Mount Kit
Product Card

Regulatory Compliance

FCC Part 15 (Class B)
IC
CE EMC
CB
UL

Model Comparison

Gateway3 4G 1SFP

Gateway6 4mG

Gateway6 8mG 2SFP+

Gateway5 4mG

Model Number ESG320 ESG610 ESG620 ESG510
CPU Processor Dual Core Quad Core Quad Core Quad Core
Operating Frequency 2.1GHz 2.2GHz 2.2GHz 1.6GHz
Memory 4GB 8GB 8GB (v1);4GB (v2) 4GB
Flash Storage 8GB 8GB 16GB 8GB
RJ-45 Interface 4 x 1G 4 x 2.5G 8 x 2.5G 4 x 2.5G
PoE Standard af/at af/at af/at af/at
SFP Interface 1 x SFP - 2 x SFP+ -
PoE ports 1 1 4 1
Security Chip TPM TPM TPM TPM
Firewall (SPI Throughput) 3G 6.8G 7.7G 4G
Power 54V/1.2A - Internal 300w power 54V/1.2A
VPN throughput 900M 1.5G 1.5G 970M
Max. Concurrent VPN Tunnels 100 300 300 200
Mounting Method Wall mount Wall mount Rack mount Wall mount
Dimensions 210 x 179.5 x 35 mm 210 x 179.5 x 35 mm 330 x 230 x 44 mm 210 x 179.5 x 35 mm
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Type
Name
Version
Release Date
Download
Checksum
Data Sheet Gateway3 4G 1SFP - ESG320 Datasheet v1.1 Dicembre 24, 2025
Data Sheet EnGenius VPN Firewall Datasheet v2.0 Dicembre 24, 2025
Data Sheet EnGenius Cloud Management Datasheet v1.6 Novembre 11, 2024
Quick Guide Gateway3 4G 1SFP_ESG320_QSG_EN v1.0 Gennaio 02, 2026
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.68-6.bin v1.2.68 Gennaio 10, 2025
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.70-12.bin v1.2.70 Marzo 06, 2025
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.71-0.bin v1.2.71 Aprile 18, 2025
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.80-6.bin v1.2.80-6 Luglio 09, 2025
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.81-4.bin v1.2.81-4 Luglio 31, 2025
CE Declaration CE_DoC-ESG320.pdf 20250730 Agosto 22, 2025
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.82-0.bin v1.2.82-0 Settembre 02, 2025
Firmware Gateway3_4G_1SFP_ESG320_firmware_v1.2.85-16.bin v1.2.85-16 Gennaio 09, 2026
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