Description: W5100 is a multi-purpose single internet interface chip, integrated 10/100 ethernet controller inside. Applied to embedded system which is high integration, high stability, high performance and low cost. It can be connected to Internet without operating system and compatible with IEEE802.3 10BASE-T and 802.3u 100BASE-TX. It contains TCP/IP protocol stack that is full-hardware and verified by market for years, ethernet medium transport layer and physical layer. You don ’t need to consider the control of ethernet, and just need simple program of ports. Specification: Various interface: Direct Bus, Indirect Bus and SPI Bus Supporting TCP/IP protocol stack of hardware, also TCP,UDP,ICMP,IGMP,IPv4,ARP and PPPoE Up to 4 independent ports Integrating 16KBYTE transmit-receive cache Outputting multiple indicating information,including RX,TX,Full/Duplex,Colision,Link,Speed Supporting automatic conversion of polarity Coming with Internet access, dual row of 2*14 2.0mm pins Size: Approx. 5.3x 3x 1.7cm/ 2.09x 1.18x 0.67inch Package Includes: 1 Piece W5100 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