Black Box LGB304A Gigabit Ethernet Switch - 4-Port 10/100/1000Base-T Unmanaged Desktop - Layer 2 Compact
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Product Features
Technical Overview
This Layer 2 switch utilizes a non-blocking, store-and-forward switching architecture to ensure efficient data packet handling with minimal latency. Each of the four RJ45 ports automatically detects connected device speed (10, 100, or 1000 Mbps) and negotiates the optimal duplex mode (half or full), maintaining robust network performance without administrative overhead.
The switch supports Gigabit Ethernet technology, delivering up to 1000 Mbps per port for bandwidth-intensive applications. It is compatible with standard Category 5e or higher Ethernet cables and operates on a 3.30-watt power adapter, contributing to lower operational costs and reduced heat output.
Relevant factors for this section include Total Number of Network Ports, Port/Expansion Slot Details, Media Type Supported, Ethernet Technology. 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 LGB304A excels in delivering essential switching functions with maximum convenience and reliability. Its design prioritizes user-friendly operation and network stability for non-technical environments.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include Simplified Connectivity, Compact and Efficient.
Simplified Connectivity
Auto-MDI/MDI-X on all ports allows the use of standard straight-through cables for any connection, removing the complexity of cable types and reducing installation errors.
- No crossover cables needed
- Universal cable compatibility
Compact and Efficient
With a footprint smaller than a standard router and power consumption under 4 watts, this switch fits neatly into tight spaces and helps minimize energy usage in always-on deployments.
- Desktop or wall-mountable
- Low heat generation
Deployment / Use Cases
This switch is ideal for scenarios requiring additional Ethernet ports without the complexity of managed networking. It serves as an effective solution for expanding wired connectivity in environments where simplicity and cost-effectiveness are paramount.
Common applications include adding ports behind a media center for gaming consoles and streaming devices, creating a small workgroup network in a home office, or connecting multiple point-of-sale terminals in a retail setting. Its unmanaged nature makes it suitable for temporary setups, conference rooms, or educational labs where quick deployment is essential.
Small Office Network Expansion
Add up to three additional devices to a single router port, enabling shared internet access and local file transfers between computers, printers, and NAS devices.
Home Entertainment Hub
Connect smart TVs, gaming consoles, media players, and set-top boxes to a single network source, reducing cable clutter and ensuring stable high-definition streaming.
Physical Profile
The switch measures 2.40 inches wide, 3.10 inches deep, and 0.80 inches high, with a weight of approximately 6.40 ounces. This slim profile allows for placement on desks, shelves, or mounted vertically on walls using optional adhesive strips or brackets. The casing features LED indicators for power and port activity, providing clear status visibility at a glance. The compact design does not include rack-mount ears, positioning it as a dedicated desktop or wall-mounted unit.
- Width
- 2.40" (60.96 mm)
- Depth
- 3.10" (78.74 mm)
- Height
- 0.80" (20.32 mm)
- Weight
- 6.40 oz (181.44 g)
What's in the Box
The package includes all necessary components for immediate operation.
Package contents include Switch - (4) 10/100/1000Mbps RJ45 Power Adapter Power Cable, Switch - (4) 10/100/1000Mbps RJ45. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- Four auto-sensing 10/100/1000 Mbps Gigabit Ethernet ports
- Plug-and-play unmanaged operation with no configuration required
- Auto-MDI/MDI-X function eliminates need for crossover cables
- Non-blocking, store-and-forward switching for efficient data handling
- Compact desktop design (2.4" W x 3.1" D x 0.8" H)
- Low power consumption at 3.30 watts
- LED indicators for power and port activity status
- TAA compliant and environmentally friendly
Specifications
| Specifications | |
|---|---|
| Manufacturer | Black Box Corporation |
| Manufacturer Part Number | LGB304A |
| Brand Name | Black Box |
| Product Series | LGB300 |
| Product Model | LGB304A |
| Product Name | Switch - (4) 10/100/1000Mbps RJ45 |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Total Number of Network Ports | 4 |
| Port/Expansion Slot Details | 4 x Gigabit Ethernet Network |
| Media & Performance | |
| Media Type Supported | Twisted Pair |
| Ethernet Technology | Gigabit Ethernet |
| Network Technology | 10/100/1000Base-T |
| Network & Communication | |
| Layer Supported | 2 |
| Management & Protocols | |
| Manageable | No |
| Power Description | |
| Power Source | Power Adapter |
| Power Consumption | 3.30 W |
| Physical Characteristics | |
| Height | 0.80" (20.32 mm) |
| Width | 2.40" (60.96 mm) |
| Depth | 3.10" (78.74 mm) |
| Weight (Approximate) | 6.40 oz (181.44 g) |
| Miscellaneous | |
| Package Contents | Switch - (4) 10/100/1000Mbps RJ45 Power Adapter Power Cable |
| Environmentally Friendly | Yes |
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Warranty | |
| Limited Warranty | 1 Year |
User Manual
FAQ
How many devices can I connect to this switch?
The Black Box LGB304A provides four Gigabit Ethernet ports. You can connect up to four wired devices directly, such as computers, printers, or IP cameras. If you need to connect more devices, you can daisy-chain another switch to one of the ports, though this may impact overall network performance depending on traffic.
Does this switch support Power over Ethernet (PoE)?
No, this switch does not support Power over Ethernet. It is a standard Gigabit Ethernet switch that provides data connectivity only. Connected devices must have their own separate power sources. For PoE capabilities, you would need to select a switch specifically designed with PoE ports and an adequate power budget.
Is this a managed or unmanaged switch?
This is an unmanaged switch. It operates on a plug-and-play basis with no configuration interface, VLAN support, QoS settings, or remote management capabilities. It is designed for simple network expansion where automatic port negotiation and basic switching functions are sufficient.
What is the maximum data speed per port?
Each port supports Gigabit Ethernet speeds up to 1000 Mbps (1 Gbps). The ports are auto-sensing and will automatically negotiate the highest common speed with the connected device, falling back to 100 Mbps or 10 Mbps if the device only supports those slower standards.
Can I mount this switch in a server rack?
No, this switch is designed as a desktop or wall-mountable unit. It does not include rack-mount ears or a standard rack unit (RU) form factor. Its compact dimensions make it suitable for placement on shelves, desks, or attached to walls using adhesive or third-party mounting brackets, but it is not intended for installation in a equipment rack.
What type of Ethernet cable should I use with this switch?
Use standard twisted-pair Ethernet cables (UTP) with RJ45 connectors. For Gigabit speeds (1000 Mbps), Category 5e (Cat5e) or higher (Cat6, Cat6a) cable is recommended. The switch's auto-MDI/MDI-X feature works with straight-through cables, so you do not need crossover cables for any connection, regardless of whether you are connecting to a computer, another switch, or a router.
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