Product Description:_x000D_Size: 40*40*20mm_x000D_Material: Aluminum_x000D_Color: White_x000D_Tooth number: 11_x000D_Tooth thickness: middle1.23, Left and Right 1.8mm_x000D_Baseplate thickness: 4.2mm_x000D__x000D__x000D_Features:_x000D__x000D_1.This aluminum heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device, thereby allowing regulation of the device's temperature at optimal levels. In computers, heat sinks are used to cool central processing units or graphics processors._x000D_2.This aluminum heat sink is made of high quality aluminum, which owns good thermal conductivity. designed to maximize its surface area in contact with the cool air_x000D_3.Maximize surface area is designed in contact with the cooling air. The pcs fins increase the area of the board and thus provide for greater heat transfer_x000D_4.Easy to install and easy to use. Place this cooling fin under mobile device to cool them_x000D_5.The aluminum heat sink is suitable for electronic, computer, electrical facilities, plaing a strong cooling effect_x000D__x000D_Package Included:_x000D_1x Heat Sink 1This aluminum heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device, thereby allowing regulation of the device's temperature at optimal levels. In computers, heat sinks are used to cool central processing units or graphics processors. 2This aluminum heat sink is made of high quality aluminum, which owns good thermal conductivity. designed to maximize its surface area in contact with the cool air 3Maximize surface area is designed in contact with the cooling air. The pcs fins increase the area of the board and thus provide for greater heat transfer 4Easy to install and easy to use. Place this cooling fin under mobile device to cool them 5The aluminum heat sink is suitable for electronic, computer, electrical facilities, plaing a strong cooling effect