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Ubiquiti ER-4 EdgeRouter 4 - 3-Port Gigabit Router with SFP Slot - 1U Rack/Wall Mountable
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Product Features
Technical Overview
The ER-4 router supports Gigabit Ethernet technology with network standards including 1000Base-T and 1000Base-X, ensuring compatibility with modern network infrastructures. It includes three RJ-45 ports for LAN or WAN connections and a dedicated management port for administrative access, enabling precise control over network configurations. The SFP expansion slot allows for fiber optic connections, extending network reach and bandwidth options.
Performance metrics highlight its capability to handle up to 3.4 million packets per second for 64-byte packets and 4 Gbps throughput for packets 128 bytes or larger, making it efficient for data-intensive applications. The router's compact design, measuring 1.22 inches in height, 9.02 inches in width, and 5.37 inches in depth, fits seamlessly into tight spaces without compromising on functionality.
Relevant factors for this section include Total Number of Ports, Management Port, Number of Network (RJ-45) Ports, Total Number of Expansion Slots. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The Ubiquiti ER-4 offers several advantages for network deployments, starting with its versatile port configuration that includes three Gigabit RJ-45 ports and an SFP slot for scalable connectivity. Its silent, fanless operation reduces maintenance and noise, ideal for environments where quiet performance is valued. The durable metal construction ensures long-term reliability, while the compact size supports both rack and wall mounting for flexible installation.
High-Performance Routing
Delivers efficient packet handling with up to 4 Gbps throughput, suitable for bandwidth-intensive tasks without bottlenecks.
- 3.4 million packets per second for small packets
- Optimized for 128-byte or larger packets
Flexible Deployment Options
Supports 1U rack mounting and wall mounting, allowing integration into various network setups from data centers to office walls.
- 1U compatible for standard racks
- Wall mountable for space-saving installations
Deployment / Use Cases
The ER-4 router is well-suited for edge-network roles in small businesses, branch offices, or educational settings where reliable routing and basic security are needed. Its three Gigabit ports can be configured for WAN and LAN segmentation, while the SFP slot enables fiber connections for longer-distance links or higher bandwidth requirements. This makes it effective for connecting multiple devices, managing internet access, or linking to upstream network switches.
Common use cases include serving as a primary router for office networks, providing VPN termination for remote access, or acting as a firewall appliance for traffic filtering. The low power consumption and silent operation also make it suitable for deployment in noise-sensitive areas like libraries or medical offices, where maintaining a quiet environment is crucial.
Office Network Routing
Ideal for small to medium offices needing a robust router to handle internet connectivity, device management, and local network traffic with minimal downtime.
Edge Security Appliance
Can be configured with firewall rules and access controls to protect network perimeters, offering a cost-effective solution for basic security needs.
Physical Profile
The ER-4 router features a compact and sturdy design with dimensions of 1.22 inches in height, 9.02 inches in width, and 5.37 inches in depth, weighing approximately 1.75 pounds. Its 1U form factor allows for easy installation in standard server racks, while the wall-mount capability provides alternative placement options in spaces where rack space is limited. The metal case enhances durability and heat dissipation, supporting reliable operation in various environmental conditions.
- Width
- 9.02" (229 mm)
- Depth
- 5.37" (136.50 mm)
- Height
- 1.22" (31.10 mm)
- Weight
- 1.75 lb (795 g)
Highlights
- Three Gigabit RJ-45 ports for flexible LAN/WAN connections
- One SFP (mini-GBIC) slot for fiber optic uplinks
- 1 GB standard memory for efficient packet processing
- Fanless, silent operation ideal for quiet environments
- 1U rack-mountable and wall-mountable form factor
- Compact metal case for durability and heat management
- Throughput up to 4 Gbps for larger packets
- Low power consumption at 13 W for energy efficiency
Specifications
| Specifications | |
|---|---|
| Manufacturer | Ubiquiti Inc. |
| Manufacturer Part Number | ER-4 |
| Brand Name | Ubiquiti |
| Product Line | EdgeRouter 4 |
| Product Model | ER-4 |
| Product Name | ER-4 Router |
| Product Type | Router |
| Interfaces/Ports | |
| Total Number of Ports | 3 |
| Management Port | Yes |
| Number of Network (RJ-45) Ports | 3 |
| I/O Expansions | |
| Total Number of Expansion Slots | 1 |
| Expansion Slot Type | SFP (mini-GBIC) |
| Network & Communication | |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 1000Base-T,1000Base-X |
| Memory | |
| Standard Memory | 1 GB |
| Power Description | |
| Power Consumption | 13 W |
| Physical Characteristics | |
| Compatible Rack Unit | 1U |
| Form Factor | Rack-mountable,Wall Mountable |
| Height | 1.22" (31.10 mm) |
| Width | 9.02" (229 mm) |
| Depth | 5.37" (136.50 mm) |
| Weight (Approximate) | 1.75 lb (795 g) |
| Warranty | |
| Limited Warranty | 1 Year |
User Manual
FAQ
How many Ethernet ports does the Ubiquiti ER-4 router have?
The Ubiquiti ER-4 router has three Gigabit Ethernet RJ-45 ports. These ports support 1000Base-T network technology and can be used for WAN or LAN connections, providing flexibility in network setup. Additionally, it includes a management port for administrative access to configure routing and security settings.
What is the purpose of the SFP slot on the ER-4 router?
The SFP (mini-GBIC) slot on the ER-4 router allows for fiber optic connections, enabling higher bandwidth or longer-distance network links compared to standard copper Ethernet. This expansion slot supports 1000Base-X technology, making it useful for connecting to fiber switches or extending network reach in environments where copper cabling is insufficient.
Can the ER-4 router be mounted in a server rack?
Yes, the ER-4 router is compatible with 1U server racks, making it easy to integrate into standard data center or network closet setups. Its dimensions of 1.22 inches in height, 9.02 inches in width, and 5.37 inches in depth fit neatly into rack spaces, and it also supports wall mounting for alternative deployment options where rack space is not available.
What is the throughput performance of the ER-4 router?
The ER-4 router delivers up to 3.4 million packets per second for 64-byte packets and up to 4 Gbps throughput for packets 128 bytes or larger. This performance level ensures efficient handling of network traffic, suitable for applications like internet routing, VPNs, or small business networks without significant latency or bottlenecks.
Does the ER-4 router have a fan for cooling?
No, the ER-4 router operates without a fan, using passive cooling for silent operation. This fanless design reduces noise, making it ideal for office environments, libraries, or other quiet spaces where minimal acoustic disturbance is desired. The metal case aids in heat dissipation to maintain reliable performance.
What warranty is included with the Ubiquiti ER-4 router?
The Ubiquiti ER-4 router comes with a one-year limited warranty from the manufacturer. This warranty covers defects in materials or workmanship under normal use, providing assurance of product reliability. For detailed terms, refer to the manufacturer's documentation or support resources.
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