The bi-directional logic level converter is a small device that can safely downgrade 5V signals to 3.3V while simultaneously upgrading 3.3V to 5V.<br> This bi-directional module works with 2.8V and 1.8V devices and can be transmitted bi-directional between high logic voltage and low logic voltage with 4 channels.<br> Each logic level converter can convert 4 pins on the high side into 4 pins on the low side, with two inputs and two outputs for each side.<br> <br> Colour:blue<br> Material:plastic<br> <br> Package Contents:<br> 10 * 4 Channel I2C Logic Level Converter Bi-Directional Module<br> <br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.