Network Modules

Unveil the potential of your projects with our Network Modules. Offering a range of connectivity options, they are the ideal choice for building efficient and scalable network applications.

Network Modules
WIZ811MJ is the network module that includes W5100 (TCP/IP, MAC & PHY) & MAG-JACK (RJ45 with X’FMR) with other glue logics. It can be used as a component and no effort is required to interface W5100 & MAG Jack. The WIZ811MJ is an ideal option for users who want to develop their Internet enabling systems rapidly.



The WIZ811MJ is a versatile network module engineered to streamline the integration of Internet connectivity into a broad array of applications. Featuring the W5100 chip, it brings together TCP/IP stack capabilities, MAC, and PHY in a single component, ensuring reliable network communication. This module is particularly designed for rapid deployment, incorporating a MAG-JACK (RJ45 with transformer) to simplify the network connection process, thereby eliminating the complexity usually associated with networking hardware interfacing. Its design and functionality make it an excellent choice for developers focused on fast-tracking the development of Internet-enabled systems. Key Specifications: Core: W5100 (integrated TCP/IP, MAC & PHY) Interfaces: SPI, 8-bit bus; Ethernet via RJ45 Operational Temperature: -40 to 85°C Size: 55.5 x 25 x 23.5 mm Features: No need for complex hardware design for W5100, supports MCU BUS and high-speed SPI interface, capable of handling 4 hardware sockets for diverse network communications Description: The WIZ811MJ network module simplifies the task of adding Ethernet connectivity to devices, reducing the development time significantly. By integrating essential networking functionalities into a single chip and providing a ready-to-use RJ45 connection, it offers a plug-and-play solution that is both efficient and effective. The module's support for both MCU BUS and high-speed SPI interfaces provides flexibility in connecting with various microcontrollers, while its capability to support up to 4 hardware sockets enables multiple simultaneous network connections, enhancing its application scope. Applications: With its focus on ease of use and rapid integration, the WIZ811MJ is ideal for a wide range of applications, including IoT devices, smart home systems, industrial controls, and any project that requires quick and reliable network connectivity.


  • Plug-in Network Module
  • Usable without H/W design for W5100, transformer & RJ-45
  • Fast evaluation for W5100 & MCU in the target board
  • Support MCU BUS & high speed SPI interface
  • Support 4 hardware sockets
  • Operation Temperature : -40 ~ 85℃
  • H/W design feature : refer the comparison table in the below