80MHz high-speed SPI interface Built-in hardware TCP/IP protocol stack; minimal network protocol knowledge required Supports up to 8 socket connections Supports TCP, UDP, ICMP, IPv4, 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 byte transmit/receive buffer Embedded 10BaseT/100BaseTX Ethernet Physical Layer (PHY) Supports auto-negotiation (10/100Base full/half duplex) IP fragmentation not supported 3.3V operating voltage, I/O signal port tolerates 5V 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; current should exceed 200mA Control Interface Type: 3.3V TTL level, SPI interface; 2* single row pin Color: Green Material: ABS Size: 23 x 25 mm Package Contents: 1 * W5500 Ethernet Network Module Note: Light and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowable measurement error is +/- 1-3cm.