The heat exchanger exchanges heat through contact with air, which can exhale heat faster. This heat sink not only has high heat dissipation performance, but also can better protect your laptop. It is made of good quality copper material, durable to use. There are 4 sizes for you to choose. It is suitable for M.2 NGFF 2280 970evo. The ultra-thin radiator is specially designed to dissipate heat from notebooks and some small spaces. Item Name: Heat Sink Material: Copper Color: Copper Color Thickness: 1.5mm, 2mm, 2.5mm, 3mm (Optional) Features: Universal, Easy to Use, High Effective Size Details: 1.5mm Size: 7cm x 2cm x 0.15cm/2.76" x 0.79" x 0.06" (Approx.) 2mm Size: 7cm x 2cm x 0.2cm/2.76" x 0.79" x 0.08" (Approx.) 2.5mm Size: 7cm x 2cm x 0.25cm/2.76" x 0.79" x 0.1" (Approx.) 3mm Size: 7cm x 2cm x 0.3cm/2.76" x 0.79" x 0.12" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Before Buying: 1. Use a ruler to measure the length and width of the m.2 solid-state drive chip to see if it matches almost 70mm x 20mm. 2. The space on the hard disk also needs to be measured enough. Package Includes: 1 x Heat Sink 1 x Thermal Conductive Adhesive