ITEM NAME:Raspberry Pi 8-channel Level Shifter Module 3.3V and 5V IO Bi-directional Product Description Description: V2 upgrade as follows: 1.VCCA and VCCB on each a set of.VCCA and VCCB on each a set of powered interface, (for example: PI 5V sensors. V2 version 2 adds a set of power port. Included: 1 X Module. If item is defective after 3 months, you can still send it back to us. ).