Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si 80MHz high-speed SPI interface -in hardware TCPIP protocol stack, users hardly need to master complex network protocol knowledge Support up to 8 Socket connections Support , UDP, ICMP, IPv4, , IGMP, PPPoE protocols Integrated data link layer, layer Support - wake-up Support high-speed serial peripheral interface (SPI mode 0~3) Internal 32K bytes transceiver buffer Embedded 10BaseT/100BaseTX Ethernet Layer (PHY) Support auto-negotiation (10/100-Based full duplex/half duplex) IP fragmentation is not supported 3.3V working voltage, I/O signal port 5V withstand voltage LED status display (full/half duplex, network connection, network speed, activity status) Ultra-small pin package for embedded applications Provides application routines for C Product Features: supply mode: 3.3V external supply, the current should be greater than 200mA Control interface form: 3.3V TTL level, SPI interface; 2* single row of pins Colour: green Material: ABS Size: 23 x 25 mm Package Contents: 1 * W5500 Ethernet network module Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.