6 Gigabit Ports: Includes 4 POE, 1 Uplink and 1 SFP Port, all ports support gigabit rate(1000Mbps); switching capacity is 12Gbps, supports full line rate forwarding of all ports. SFP Slot supports single-mode and multi-mode optical module, which can transmit longer distances through optical fibers Compliant IEEE 802.3af/at: Ports 1-4 support ieee802.3af/at, max 30w; Built in power supply, 65W overall, POE port output voltage 44-57V, typical value 48V. *Please note: it will not supply power to passive 24V PoE and NON-PoE devices.* Vlan Isolation & Extend Distance: Ports 1-4 support VLAN port isolation and cannot communicate with each other, only communicate with uplink 5 and SFP port, which can reduce network congestion, improve performance and safety; ports 3 and 4 support POE distances up to 250 meters, the rate is 10Mbps Unmanaged Network Switch: Supports automatic detection of power supply for POE devices, port auto-negotiation, built-in power module, just connect the powe