KKmoon 4 Port 100Mbps IEEE802.3af POE Switch/Injector Power over Ethernet for IP Camera VoIP Phone AP devices 104POE-AF Can supply power to network surveillance cameras that with PoE function 5x 10/100Mbps auto-sensing RJ45 ports, 4x 10/100MbpsPoE ports, 1x uplink port Supports port auto-flip (Auto MDI/ MDIX); Maximum power of single PoE port: 15.4W Adopts store-and-forward architecture; IEEE 802.3af power on up to 4 ports Features with fanless, natural cooling, small, compact and quiet design, suitable for desktop or wall