Type:Expansion Board Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Black Material:PCB Package Contents: 1 * Expansion Board 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.