STEMMA QT 5V to 3V Shifter - 5V/3.3V voltage level converter

Module with a 4-bit bi-directional voltage level converter. It allows you to connect digital interfaces with different operating voltages. KAmodNTS0104PW

Voltage-to-current converter module designed for devices with a current signal input. It allows you to linearly convert voltage signals from 0 to 5 V into current signals from 0 to 20 mA

BOB-12009

The KAmod Level Shift x4 module is a logic level converter that enables the connection of electronic systems powered by different voltages, such as 5 V and 3.3 V. The module provides four bidirectional channels that can operate with digital signals ranging from 1.8 V to 5 V. It is an excellent choice for level conversion in I2C bus applications.

Module with a voltage divider. Equipped with a Grove connector, it allows the input voltage to be reduced by 3 or 10 times. Seeed Studio 104020000

BOB-11771 Voltage-Level Translator - TXB0104 Breakout

A module enabling the conversion of input voltage in the range from 1.8 V to 5.3 V into the appropriate negative output voltage. It offers high efficiency in excess of 80%, making it ideal for applications where a lower power negative supply is required, such as biasing sensors or op-amp circuits. Pololu 2839

4-channel converter of logic levels allowing for connection of systems operating with voltage levels of 1.8 V, 2.5 V, 3.3 V and 5 V. DFRobot DFR0843

4-channel converter of voltage levels 3.3V/5V that allows you to connect systems operating at a lower voltage to those powered by a higher voltage

3V/5V voltage level converter module with built-in Step-Up converter. Allows development boards operating at 3V to be connected to a device requiring a higher operating voltage of 5V for I2C communication. Adafruit 5649

8-bit Bidirectional Voltage Converter