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Black Box desktop switch with four RJ45 ports

Black Box Corporation

Black Box LGB304AE 4-port Gigabit network switch

SKU CH-2DAD-EG9WT MPN LGB304AE

Four-port desktop Gigabit Ethernet switch with 10/100/1000Base-TX RJ45 ports and 220 V AC power

  • Switch Typeother
  • FormatDesktop
  • Network Management TypeEthernet Switch
  • Uplink PortsNo
  • Primary Ports4 x Gigabit Ethernet Network Gigabit Ethernet
  • Primary Port Speed10/100/1000Base-TX
  • Connect four devices at gigabit speed with four 10/100/1000Base-TX ports
  • Plug into standard 220V AC power for reliable desktop operation
  • Lightweight 0.79 unit fits tight workspaces without added bulk
  • Unmanaged Ethernet switching keeps setup simple with no configuration needed
  • Desktop format suits office or home networks with silent performance

Compact desktop switch

The Black Box LGB304AE is a four-port Gigabit Ethernet switch in a desktop form factor. It provides basic network expansion for small offices or home workgroups. The unit operates as an unmanaged Ethernet switch requiring no configuration. It connects directly to a 220V AC mains supply.

Four gigabit ports

Each of the four RJ45 ports negotiates at 10, 100 or 1000 Mbps to match attached devices. The switch handles typical file sharing, printing and internet access for a handful of users. Bandwidth becomes constrained when multiple ports sustain simultaneous gigabit throughput. Heavier workloads such as large database transfers or multi-stream video editing will saturate the backplane.

Gigabit Ethernet limits

The 10/100/1000Base-TX interface caps each link at one gigabit per second over copper cabling. Cable runs must not exceed the standard 100-metre limit for reliable operation. The switch lacks uplink ports, stacking or management features, so it cannot be aggregated into larger managed fabrics. Networks needing VLANs, QoS or redundant uplinks require a different class of hardware.

Highlights

  • Connect four devices at gigabit speed with four 10/100/1000Base-TX ports
  • Plug into standard 220V AC power for reliable desktop operation
  • Lightweight 0.79 unit fits tight workspaces without added bulk
  • Unmanaged Ethernet switching keeps setup simple with no configuration needed
  • Desktop format suits office or home networks with silent performance

Specifications

BrandBlack Box
Switch Typeother
FormatDesktop
Network Management TypeEthernet Switch
Uplink PortsNo
Primary Ports4 x Gigabit Ethernet Network Gigabit Ethernet
Primary Port Speed10/100/1000Base-TX
Weight0.79
Shipping weight0.45 kg
Package size104 × 91 × 89 mm

Questions about this item

Will the 10/100/1000Base-TX ports auto-negotiate with my older 10/100 devices?

Yes, each of the four ports supports 10, 100 and 1000 Mbps speeds and will negotiate the highest common rate with legacy equipment.

How can I verify the switch is operating correctly after connecting it?

The front-panel LEDs show link and activity for every port; a steady light means a valid connection and blinking indicates traffic.

Does the package include a power adapter or must I buy one separately?

The unit runs from a 220 V AC supply; a mains lead is included in the box so no separate adapter is required.

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