Tenda 10/100Mbps Desktop Switch with 4-Port PoE that requires no configuration. 4 of the 8 Auto-Negotiation RJ45 ports (port-1 to port-4) of the switch support Power over Ethernet (PoE) function. These PoE ports can automatically detect and supply power with those IEEE 802.3af compliant Powered Devices (PDs). In this situation, the electrical power is transmitted along with data in one single cable allowing you to expand your network to where there are no power lines or outlets, where you wish to Âfix devices such as APs, IP Cameras or IP Phones, etc.
Specifications:  Standard&Protocol:IEEE 802.3,IEEE 802.3u,IEEE 802.3x,IEEE 802.3af,IEEE 802.3at  Interface: 10/100Mbps auto-negotiation ports, port1 to port4 support IEEE802.3 at/af standard  Network Media: 100BASE-TX: UTP category 5, 5e cable (?150m)  Backbound Bandwidth: 1.6 Gbps  MAC Address Table: 2K  Transmission Media: Store-And-Forward  Indicator: Link/Act per device, 4 x PoE Status, 1 x Power, 1 x PoE-MAX  Input Power: External Power Supply: DC: 51V/1.25A  Consumption: 2 Watts (max. no PD connected)60 Watts (max. with 58W PD connected)  Dimension: 186.7mm x 106.7mm x 33.3mm (LxWxH)  Weight: Less than 5kg  PoE Total Power:58W  Forwarding Rate: 10BASE-T: 14880pps/port 100BASE-TX: 148800pps/port  Temperature: -10ºC ~ 45ºC  Humidity: 10%?90%RH (non-condensing)  Certification: FCC, CE, RHOS