W5100 Ethernet Shield LAN Network Module W5500 supports IP 51/ STM32 Microcontroller with 32k Bytes SPI This ethernet shield is designed as a replacement for the W5100 shield, featuring the W5500 Ethernet controller for improved network performance and reliability. It is compatible with IP 51 microcontroller architectures and STM32 microcontrollers, and it uses a 32k Byte SPI interface to access its memory. Key benefits Upgraded Ethernet controller: W5500 provides hardwareaccelerated networking capabilities for more efficient and stable wired connections. Increases MCU efficiency: By handling more network tasks in hardware, it can reduce processor load on the host controller. Dropin replacement for W5100 shields: A convenient upgrade path for existing projects that previously used W5100based modules. SPI based and memory rich: 32k Bytes SPI access provides ample buffering and data handling for network communication. Broad MCU compatibility: Designed to work with IP 51 microcontrollers and STM32 microcontrollers, enabling a wide range of development options. Key attributes Functionality: Ethernet Shield LAN Network Module based on the W5500 Ethernet controller, intended as a replacement for W5100. Compatibility: Supports IP 51 microcontrollers and STM32 microcontrollers. Interface: SPI (32k Byte SPI memory). Model/specification alignment: Replaces W5100 shields while using the W5500 technology. Two to three use cases Upgrading existing W5100based projects: Swap in this W5500 module to gain improved network performance while keeping your established 51based MCU or STM32 design. STM32 networked devices: Add reliable wired Ethernet connectivity to STM32based data loggers, remote monitoring systems, or industrial control units. IPbased embedded systems: Use in IoT gateways or other devices requiring stable, wired LAN communication with a microcontroller platform. Notes The description reflects the product's stated model and features: W5100 Ethernet Shield LAN Network Module updated to W5500, with IP 51/ STM32 MCU compatibility and 32k Bytes SPI. No additional or external specifications are assumed beyond what is provided in the product title.