Use: for Banana Pi -R4 Case: Protective Shell Note:Due to different production batches, there are differences in appearance, which does not affect usage. Type:With Fan Colour:Black Material:Aluminum Alloy Package Contents: 1 x Case 1 x Fan 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.