4 Channel IIC I2C Logic Level Convert 5V to 3.3V Bi-Directional Shifter Module for Arduino

Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find that they need to perform level shifting/conversion to protect the 3.3V device from 5V. The CJMCU bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. Specifications: Channel: 4-channle Voltage: 5V, 3.3V Size: 2*1.7cm/0.79*0.67in Weight: 3g(approx.) Package Includes: 1 x Module 2 x Pin Headers