PoE ICs (Power over Ethernet Integrated Circuits) are a category of semiconductor products designed to enable power and data transmission over Ethernet cables. These ICs are not tied to a single brand but are produced by various companies globally, including leading semiconductor manufacturers like Texas Instruments (USA), Microchip Technology (USA), and NXP Semiconductors (Netherlands). PoE ICs serve industries such as telecommunications, industrial automation, and IoT, providing solutions for devices like IP cameras, VoIP phones, and wireless access points. Key products include PoE controllers, power sourcing equipment (PSE) ICs, and powered device (PD) ICs, which comply with standards like IEEE 802.3af/at/bt.