USB-C Host Shield - USB host module with type C connector for Arduino

 Introducing Adafruit FONA 808 GSM + GPS Shield, an all-in-one cellular phone module with that lets you add location-tracking, voice, text, SMS and data to your project, in Arduino shield format for easy use. Adafruit 2636

Shield for STM32 series Nucleo, XNucleo and Arduino series for communication via RS485 and CAN interfaces (CAN is only available for Nucleo and XNucleo plates). Shield is based on MAX3485 and SN65HVD230 systems

Arduino compatible shield for the ESP8266 WiFi SoC – a leading platform for Internet of Things (IoT) or WiFi-related projects. WRL-13287

The CAN-BUS Arduino Shield v2.0 can be stacked on an Arduino UNO, Arduino Leonardo or Arduino MEGA board. The shield integrates an MCP2515 CAN-BUS chip on the shield and has a CAN-BUS transceiver function. With an on-board DB9 and CAN-BUS connector you can choose a suitable port according to your host device. There is also an integrated MicroSD socket for data storage. DFR0370

Connect your Arduino-compatible to the Internet with this WiFi shield that features the FCC-certified ATWINC1500 module from Atmel. Adafruit 3653

Connect your Arduino-compatible to the Internet with this WiFi shield that features the FCC-certified ATWINC1500 module from Atmel. Adafruit 3654

Advanced expansion shield for Arduino. Supports SIM cards as well as NB-IoT / CAT-M cards. With the integrated GNSS (Global Navigation Satellite System) module, it supports GPS, GLONASS, Galileo and BeiDou navigation systems. The module is powered with a voltage from 7 V to 12 V. DFRobot DFR0572

Shield with LTE CAT M1/NB-IoT SARA-R4 modem. Compatible with Arduino. Hologram SIM card included. SparkFun CEL-15087

Shield designed for IoT applications with LTE CAT M1/NB-IoT SARA-R4 modem. The board is compatible with Arduino, allows you to add communication via cellular networks to Arduino boards. SparkFun CEL-14997

Ethernet extension for Arduino based on the Wiznet W5100S chip, enabling a microcontroller to connect to a LAN network via an RJ45 connector. The module supports a hardware TCP/IP stack, up to 4 simultaneous network connections, and includes a microSD card slot, communicating with Arduino through the SPI interface. DFRobot DFR0125

NFC module designed for Arduino. Meets the standards of reader mode, P2P mode and card emulation mode. The board has an integrated RF antenna. NXP OM5578/PN7150ARDM

Expansion board with 4G/3G/2G communication module and GNSS positioning. The kit has pins compatible with Arduino and STM32 Nucleo. DFRobot TEL0124

Expansion board with GSM/GPRS module designed for Arduino and Raspberry Pi. It uses the Quectel M95 chip, the board has two audio connectors, a microSD slot and a dual SIM slot. A-GSM II Shield

Ethernet network module with W5500 chip and PoE (Power over Ethernet) function. It communicates via the SPI interface, it has a built-in TCP/IP stack. DFRobot DFR0850

Ethernet network module with W5500 chip. It communicates via the SPI interface, it has a built-in TCP/IP stack. There are two Grove connectors with I2C and UART on the board. Seeed Studio 103030021

CAN module based on MCP2551 and MCP2515 systems with an OBD-II compatible connector. It uses the I2C or UART bus (Grove connectors) for communication. Seeed Studio 103030215