Features: and Supports Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE. Supports 8 independent sockets simultaneously. Supports Power down mode. Supports Wake on LAN over UDP. Supports High Speed Serial Peripheral Interfac(SPI MODE 0, 3). Internal 32Kbytes Memory for TX/RX Buffers. 10BaseT/100BaseTX Ethernet PHY embedded. Supports Auto Negotiation (Full and half duplex, 10 and 100-based ). Not supports IP Fragmentation. 3.3V operation with 5V I/O signal tolerance. LED outputs (Full/Half duplex, Link, Speed, Active). 48 Pin LQFP Lead-Free Package (7x7mm, 0.5mm pitch). Specifications: Chip type: W5500 Supports both 3.3V & 5V. Hardwired TCP/IP Protocols : TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE 10BaseT/100BaseTX Ethernet PHY embedded Supports automatic response (full duplex / half duplex mode) Supports 8 independent sockets simultaneously Internal 32Kbytes Memory for Tx/Rx Buffers Power off mode: support Network wake: support SPI interface (SPI MODE 0, 3),convenient connection with MCU Size: 55mm x 28mm Color: Blue Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x W5500 Ethernet Network Module Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.