Black Box MiniPower Gigabit Ethernet to Fiber Media Converter

The Black Box LGC135A-R3 is a mini media converter that gives any copper Ethernet port a straightforward path to gigabit fiber. It accepts 10, 100, and 1000 Mbps traffic on the RJ45 side and forwards it over a 1000 Mbps fiber link, letting you push your network well past the 100-meter limit of copper cabling.

The converter relies on industry-standard SFP modules, so you can choose the fiber that matches each job. A multimode SFP covers short in-building runs, while a single-mode model can carry data up to 80 kilometers for campus backbones or remote facilities. Installation is plug-and-play: insert the SFP, connect the cables, and power up. Auto MDI/MDI-X handles crossover requirements automatically, so any straight-through patch cord works.

The housing has a slim profile that fits on a desktop, inside a control cabinet, or beside a point-of-sale terminal. Power options add flexibility. Use the included AC adapter when an outlet is handy, draw power from a laptop USB port with the optional cable when you are in the field, or place the unit in a rack-mounted PowerTray for high-density deployments. Network administrators, system integrators, and IT staff in education, healthcare, retail, and industrial environments will value a tool that extends bandwidth without adding complexity or cost.

• Converts 10, 100, or 1000 Mbps copper Ethernet to 1000 Mbps fiber
• Compatible with multimode and single-mode SFP transceivers, supporting distances up to 80 km
• Measures 0.8 in H × 1.8 in W × 3.4 in D for easy placement in tight spaces
• Three power choices: external AC adapter, optional USB power cable, or rack-mountable PowerTray
• Auto MDI/MDI-X eliminates the need for crossover cables