POE Injector 4 Port Black Case | Compact Passive PoE Injector for IP Cameras & Access Points

The POE4PBC is a compact four-port passive PoE injector designed to add power delivery to Ethernet connections without replacing an existing switch or router. Its eight RJ45 ports support four separate network links, with one LAN input and one PoE output for each connected device. The interfaces operate at up to 100 Mbps, making the injector suitable for compatible IP cameras, wireless access points, VoIP equipment, and other network devices that do not require Gigabit throughput. Power and data are combined on the outgoing Ethernet cables, helping reduce the need for separate power wiring near each installation point.

The black enclosure includes mounting points for screw installation, allowing the unit to be secured to a wall, panel, cabinet, or another flat surface. A single injector can serve up to four compatible passive PoE devices, keeping multi-device installations more organized than using several individual adapters. An external power supply is required and is not included. Because the POE4PBC uses passive PoE, it does not perform the automatic power negotiation associated with IEEE 802.3af, 802.3at, or 802.3bt. Before connection, the selected power supply and every powered device must be checked for matching voltage, polarity, current requirements, and PoE pin arrangement to prevent equipment damage.