product features: Complies with IEEE 802.3, IEEE 802.3u and IEEE 802. standards.8K address learningFives 10 or 100 or 1000Mbps self-adapting RJ45 ports.5-port Gigabit Switch Module.External Application Power Supply DC5V2AMini Dimensional Design.LED indicates power, link and activity, provides simple working status prompts and troubleshootingSupport EEPROM configuration.Support stacking, support .Supports IPv4 IGMP v1 or v2 or v3 and IPv6 ML Dv1 or v2 detection.Support address learning, automatically adjust the transmission mode and transmission rateAll ports support IEEE 802.3x half-duplex flow control and full duplex back pressure mode.Non-blocking switching architecture, full wire-rate forwarding and maximum throughput filtering packetsSpecifications:Chip: RTL8367standard:IEEE 802.3 10Base-T EthernetIEEE 802.3u 100Base-TX Fast EthernetIEEE 802. 1000Base-T Gigabit Ethernet ANSI or IEEE Standard 802.3 Automatically Adjusts IEEE 802.3x Traffic Controlprotocol:CSMA or CDFiltering and forwarding ratesEthernet 10Mbps (half duplex) 20Mbps (full duplex), 10Mbps: 14, 880ppsFast Ethernet 100Mbps (Half Duplex), 200Mbps (Full Duplex), 100Mbps: 148800ppsGigabit Ethernet 2000Mbps (full-duplex), 1000Mbps: 1488000ppsTopological structureStarsNetwork media:10Base-T: UTP of Class 3 or above (100m)100Base-TX: Category 5 UTP (100m)1000Base-T: Category 6 or Category 5 UTP (100m)Number of ports: 5 10 or 100 or 1000M pin portcascade:All ports can be used as UP-LINK portsForwarding mode: Store and forwardtemperature:Working temperature: 0 -40 (32 -104 )Storage temperature: -40 -70 (-40 -158 )humidity:Operating Humidity: 10percent -90percent non-condensingStorage humidity: 5percent -95percent non-condensingBackplane bandwidth: 16GLED indication:1 power light (power light: red light)4 data lights (Link or Act: green light)Application powerExternal power supply DC 12V-48VMaterial: PCandMetalcolour: GreenPackage Contents:1 x 3-port Gigabit switch moduleOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.