80MHz High-Speed SPI Interface Built-in hardware TCP/IP protocol stack Supports up to 8 Socket connections Supports TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE protocols Integrated data link layer and physical layer Supports power-down wake-up Supports high-speed serial peripheral interface (SPI mode 0-3) Internal 32K bytes transceiver buffer Embedded 10BaseT/100BaseTX Ethernet Physical Layer (PHY) Supports auto-negotiation (10/100 Base full duplex/half duplex) IP fragmentation is not supported 3.3V working voltage; I/O signal port 5V withstand voltage LED status display indicates full/half duplex, network connection, network speed, and activity status Ultra-small pin package for embedded applications Includes application routines for C Power Supply Mode: 3.3V external power supply, current greater than 200mA Control Interface: 3.3V TTL level, SPI interface Connector Type: 2 rows of pins Color: Green Size: 23 x 25 mm Package Contents: 2 x W5500 Ethernet Network Module Disclaimer: Images may reflect slight color variations due to lighting and monitor settings. Measurement tolerances may vary within +/- 1-3 cm.