product features: Complies with IEEE 802.3, IEEE 802.3u and IEEE 802. standards.8K address learningFives 10/100/1000Mbps 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 troubleshooting;Support EEPROM configuration.Support stacking, support .Supports IPv4 IGMP v1/v2/v3 and IPv6 ML Dv1/v2 detection.Support address learning, automatically adjust the transmission mode and transmission rate;All 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/IEEE Standard 802.3 Automatically Adjusts IEEE 802.3x Traffic Controlprotocol: CSMA/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 10/100/1000M 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: 10%~90% non-condensingStorage humidity: 5%~95% non-condensingBackplane bandwidth: 16GLED indication: 1 power light (power light: red light)4 data lights (Link/Act: green light)Application powerExternal power supply DC 12V-48VMaterial: PC+Metalcolour: 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.