Features: 100% brand new and high quality for Raspberry Pi CM4 dedicated fan 3007 low noise cooling fan. Dedicated metal cooling fan for Raspberry Pi Compute Module 4 CM4, corrosion / oxidation resisting. Precise installation positioning holes, matching with the CM4 on size , fast heat dissipation. The design is reasonable and does not affect the antenna installation. Heat sink with thermal paste. Package Includes: 1PC x Raspberry Pi Heatsink Kit Specifications: Material: Metal Color: Black Size: approx.6x4cm/2.36x1.57in Paste material: Thermal paste Use for: Raspberry Pi 4B (CM4 ) note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you