WIZnet is releasing ioPort, a new RJ45-style module series made to add Ethernet to embedded products with less PCB work and faster time-to-market. ioPort modules put the Ethernet chip inside the connector, so you can keep your base board simple while still getting stable 10/100 networking.

What makes ioPort different (common features)

ioPort modules are designed for compact, production-friendly designs:

• Ethernet in an RJ45-style connector (chip built-in) for compact design-in
• Saves PCB space vs. adding a separate Ethernet module
• Simple host interface (SPI or UART/TTL, depending on model) with minimal external components
• Reduces PCB layout complexity (no high-speed Ethernet routing on the base board)

Common specs: RJ45 / 16-pin header / 3.3V / -40 to +85°C / 32.5 × 16.5 × 17.3 mm

Product 1: WIZ-IP20 (Serial-to-Ethernet, MAG-JACK)

WIZ-IP20 is a Serial-to-Ethernet module that helps you network UART/TTL-based equipment quickly.

 

Highlights

• Firmware is pre-written (ready to use) for quick integration
• Configuration options: Web UI, configuration tool, and AT commands
• TTL UART x1 interface (Serial-to-Ethernet)
• Certifications listed: CE / FCC / KC

 

 

Powered by W55RP20 (RP2040 + W5500 in one package)

WIZ-IP20 is built on W55RP20, which integrates:

• RP2040 (MCU)
• W5500 (hardwired TCP/IP Ethernet)

This means you get flexible control plus hardware TCP/IP offload in a single package—great for fast development and stable networking.

Product 2: WIZ-IP55 (Ethernet Network Module, MAG-JACK)

WIZ-IP55 is a compact Ethernet network offload module based on W5500, a hardwired TCP/IP chip that integrates the TCP/IP stack plus 10/100 Ethernet MAC & PHY.
If you’ve worked with embedded Ethernet before, there’s a good chance you’ve seen W5500 in the wild—it's widely adopted across maker and commercial ecosystems, including W5500-based Ethernet shields such as Arduino Ethernet Shield v2 (via the Ethernet2 library).

 

 

 

 

 

Highlights

• W5500-based Ethernet module (10/100)
• SPI host interface
• Certifications listed: CE / FCC / KC

 

 

MAC address policy (practical for production)

• WIZ-IP20 uses the factory MAC address stored inside the module (used automatically).
• WIZ-IP55 includes a MAC address sticker—you can use the provided MAC, or assign your own if needed.

 

Design verification + customization services

If you’re moving toward mass production (or need something a bit different), WIZnet can support:

• Design verification service (review + bring-up support)
• Hardware customization (interfaces, pinout, board changes)
• Firmware customization (protocol/features adjusted to your product requirements)

Contact

For questions, customization requests, or bulk purchases, contact: direct@wiznet.io

 

WIZ-IP20 documentation: https://docs.wiznet.io/Product/Modules/Serial-to-Ethernet-Module/WIZ-IP20/wizip20

WIZ-IP55 documentation: https://docs.wiznet.io/Product/Modules/Ethernet-Module/wizip55