Black Box LGB1100 Series Gigabit Ethernet Managed Switch

The Black Box LGB1126A-R2 is a Gigabit Ethernet switch that brings together full layer 2 management and strong port capacity for businesses that need consistent, high-speed network access. It fits naturally at the edge of office, campus, or industrial networks where 10-megabit legacy devices and modern gigabit clients must operate side by side.

The switch provides twenty four auto-negotiating RJ45 ports that support 10, 100, and 1000 megabit speeds, along with two dual-media ports that accept either standard RJ45 connections or SFP modules. This mix lets you keep existing copper cabling while adding fiber uplinks for longer runs or direct links to servers. A rack-mountable chassis with an internal power supply uses only one rack unit, so it installs cleanly in crowded wiring closets.

Day-to-day administration is handled through a web based interface, command line, SNMP, or RMON. Support for as many as four thousand VLANs allows detailed traffic segmentation, and RADIUS authentication helps enforce access policies. Configurable Quality of Service prioritizes voice or video packets, while IGMP snooping limits multicast streams to the ports that actually need them.

Network performance benefits from jumbo frame support up to nine kilobytes and a non-blocking architecture that maintains line-rate throughput on every port. Compliance with IEEE 802.3az means the switch lowers power use during periods of light traffic, reducing operating costs without sacrificing responsiveness.

Whether you are adding IP phones, expanding surveillance cameras, or simply consolidating multiple workgroups, the Black Box LGB1126A-R2 delivers the flexibility and control required to keep traffic moving smoothly and securely.

• Twenty four RJ45 ports that support 10, 100, and 1000 Mbps copper connections
• Two dual-media ports that accept either RJ45 or SFP modules for 100 or 1000 Mbps uplinks
• Complete management through SNMP, RMON, command line, or a web based graphical interface
• Support for as many as 4000 virtual LANs and advanced Quality of Service settings
• Compliance with IEEE 802.3az, which lowers power use during light traffic periods
• Internal power supply and a chassis that fits a standard 19-inch rack
• Physical size of 1.7 × 17.4 × 8.3 inches and weight of 5.5 pounds