I going to introduce new W5500 board. It's a simple W5500+RJ45 board and breadboard friendly. You can download the schematics and can be purchased from same web site.
For commercial and industrial computing applications requiring an embedded Ethernet I/O solution, eI/O OEM modules provide system designers with a compact, low-cost monitor and control alternative for a variety of applications, including process control, facility management, security and broadcast automation.
Evaluation Board "Board +HS-NM5300 module +CPU sub Board" structure, all Board and HS-NM5300 module for evaluation boards are the same, different CPU daughter Board, composed of different assessment boards.
This product supports a large 8MBytes SDRAM memory and Hardwired TCP/IP chip W5200. So, It is very easy to develope the applicatioin to be needed large memory such like IP-camera, Web-service, and SSL secuity communication.
Keyestudio W5100 Ethernet Shield gives you an easy way to get your Arduino Online
Iboard is a unique Arduino board which features a WIZnet ethernet port, an XBee socket, nRF24L01+ module interface and an ATMega328.