product features: Complies with IEEE 802.3, IEEE 802.3u and IEEE 802. standards.8K address learning Fives 10/100/1000Mbps self-adapting RJ45 ports.5-port Gigabit Switch Module.External Application Power Supply DC5V2A Mini 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 packets : Chip: RTL8367 standard: IEEE 802.3 10Base-T Ethernet IEEE 802.3u 100Base-TX Fast Ethernet IEEE 802. 1000Base-T Gigabit Ethernet ANSI/IEEE Standard 802.3 Automatically Adjusts IEEE 802.3x Traffic Control protocol: CSMA/CD Filtering and forwarding rates Ethernet 10Mbps (half duplex) 20Mbps (full duplex), 10Mbps: 14, 880pps Fast Ethernet 100Mbps (Half Duplex), 200Mbps (Full Duplex), 100Mbps: 148800pps Gigabit Ethernet 2000Mbps (full-duplex), 1000Mbps: 1488000pps Topological structure Stars Network 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 port cascade: All ports can be used as UP-LINK ports Forwarding mode: Store and forward temperature: Working temperature: 0 ~40 (32 ~104 ) Storage temperature: -40 ~70 (-40 ~158 ) humidity: Operating Humidity: 10%~90% non-condensing Storage humidity: 5%~95% non-condensingBackplane bandwidth: 16G LED indication: 1 power light (power light: red light) 4 data lights (Link/Act: green light) Application power External power supply DC 12V-48V Material: PC+Metal colour: Green Package Contents: 1 x 3-port Gigabit switch module Only 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.