8 way I2C Converter Bi-Directional Module 5V to 3.3V For Arduino

8-Channel 3.3V-5V 5V-3.3V IIC UART SPI TTL Bidirectional Level Translation Module Looper

This product is a level conversion module is not a power conversion module! . Need to connect 5V and 3.3V two power supply,

Features:
8-channel high-voltage logic and low-voltage logic bi-directional conversion, to achieve Ax and Bx two-way reciprocal.
Conversion level range: 1.8V-6V
Module size: 28mm X 27.5mm
Instructions for use:(To 3.3V, 5V reciprocal case)

VCCA then 3.3V power supply
VCCB then 5V power supply
GND Connect the negative pole of the power supply
Ax input 3.3V TTL level, Bx will output 5V TTL level
Bx input 5V TTL level, Ax will output 3.3V TTL level