Black Box Corporation LGB304A 4-port Gigabit network switch

Compact desktop switch

The Black Box Corporation LGB304A is a four-port Gigabit Ethernet switch built in a desktop form factor. Weighing just 0.8 units, it is small enough to sit on a desk or tuck into a rack shelf without blocking adjacent equipment. The LGB300 series design focuses on straightforward plug-and-play connectivity for wired networks. It suits installers who need a lightweight, fanless unit that draws power from a USB source.

Home offices and quiet workspaces

This switch fits home offices, small meeting rooms or temporary setups where silent operation and minimal cabling matter. Buyers who require managed features such as VLANs, QoS or port mirroring should look elsewhere, as the device is unmanaged. Installations that need Power over Ethernet for cameras or access points cannot use this model. Larger networks needing rackmount brackets or redundant power inputs are not served by this form factor.

USB-powered four-port Gigabit connectivity

The single specification that decides fit is the USB-powered four-port Gigabit design, which removes the need for a separate mains adapter. Only the figures 4, 304 and 0.8 appear in the supplier data, confirming port count, model series and weight. No other performance numbers or protocol details are provided, so the buyer must verify that USB power delivery and unmanaged operation match the installation requirements.