Overview The Black Box FM820-R2 is a modular RJ45 splitter that converts one male RJ45 plug into four female RJ45 jacks, enabling multiple Ethernet devices to connect through a single network port. This device is designed to simplify network expansion without the need for additional switches or hubs, making it a practical choice for home offices, small businesses, or professional environments where space and cable management are important. Its built-in circuit board ensures stable and reliable data transmission, maintaining clear and consistent network signals. The included 2.5-inch unshielded cable provides enough flexibility to fit into various setups, allowing easy integration with existing RJ45 cabling systems. Key features Splits one RJ45 male connector into four RJ45 female jacks to expand network connectivity Integral circuit board maintains secure and stable connections for consistent data signals Compact 2.5-inch unshielded cable offers flexible placement within network setups Simple plug-and-play design that requires no additional power or configuration Replaces the earlier FM820 model with the same trusted performance and reliability Key specs Connector type: 1 RJ45 male to 4 RJ45 female Cable length: 2.5 inches (unshielded) Device type: Modular RJ45 splitter Compatibility: Works with standard Ethernet RJ45 ports and cables Connectivity and compatibility This splitter works seamlessly with standard Ethernet devices that use RJ45 connectors, including computers, printers, network cameras, and other network-enabled equipment. It fits into existing Ethernet cabling systems without requiring special adapters or power sources, making it a straightforward solution for expanding network access points. Compatible with 10/100/1000 Mbps Ethernet networks Supports connection of multiple devices from a single Ethernet port Ideal for setups where additional network ports are needed without installing switches Ideal uses and environments The FM820-R2 is well suited to environments where network expansion is needed but space or budget constraints limit the use of additional switches or hubs. It works well in home offices, small business networks, and professional settings where multiple devices must share a single Ethernet connection. Its compact size and simple design make it easy to integrate into existing setups without clutter or complex installation.