1. This expansion board module is safe, reliable, and can be extended to various applications; 2. Compatible with ESP32-S3 or development boards with same pins; 3. The expansion board is made of high-quality materials, with good stability and high reliability; 4. Strong applicability, very suitable for users to reuse all pins in DIY projects.<br><br>Name: ESP32-S3 GPI0 Expansion Board Fixed hole: 3mm Power supply voltage: 6.5-9V Hole spacing: 3000 x 3000mil/76.2 x 76.2mm Pin spacing: 1000mil/25.4mm Note: The product does not include a development board and is only compatible with ESP32-S3 or development boards with same pins. Color: Black Material: PCB<br><br>Package Contents: 1 x expansion board<br><br>Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.