W5500 Ethernet Shield v1.0 The W5500 Ethernet Shield v1.0 can provide your projects with internet connectivity. W5500 enables users to have the Internet connectivity in their applications by using the single chip, in which TCP/IP stack, 10 / 100 Ethernet MAC and PHY embedded. The shield also has two Grove connectors and a microSD card socket to support projects which require storing large amounts of data from Grove sensor. The RJ45 port (where the Ethernet cable is connected to) is low enough to allow you to stack more shields on top of this one if needed. Features 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 Interface(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) Micro-SD card socket Grove connectors for I2C and UART Compatibility We have produced a lot of extension boards that can make your platform board more powerful, however not every extension board is compatible with all the platform boards, here we use a table to illustrate the compatibilities between extension boards and platform boards. Note Please note thatNot recommende means that it might have chance to work with the platform board however requires extra work such as jump wires or rewriting the code. If you are interested in digging more, welcome to contact with techsupport seeed.cc.