[GPIO Terminal Expansion Board]Compatible with Raspberry Pi 4B, 3B, 3B+, 2B, and Zero series. [Intuitive and Practical]This GPIO terminal expansion board extends the 40-pin headers of the Raspberry Pi. The right side of the board features clear silkscreen labels and LED indicators for enhanced usability. [High-Quality Expansion Board]The left side of the board is equipped with 4 sets of terminal blocks. The secure screw terminals ensure Dupont wires remain firmly connected and prevent accidental dislodging. [Easy Operation]Color-coded LEDs indicate the status of the pins-whether they are active or inactive-allowing users to quickly identify the state of different types of pins. [Dual Wiring Options]Wiring can be done either via the terminal blocks or the pin headers. The board includes dedicated openings for ribbon cables, simplifying the wiring process. Color: As Shown Material: ABS Package Contents: 1*GPIO Expansion Board Module 1*Screws Kit 1*Screwdriver Only the above package content, other products are not included. Note: Light reflection 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.