Material: All- aluminium The high quality thermal grease sheet is in full contact with the M2 SSD to quickly dissipate heat through the all-aluminum heat sink Surface treatment technology: Anode sandblasting The heat sink is processed by anode sandblasting process, with fine texture, corrosion and rust prevention, and not easy to smudge Cooling mode: Passive cooling Applicable to M.2 2280 SSD Mirror laser carving LOGO Size: L76.3 x W23.2 x H17.4mm / L3.00 x W0.91 x H0.69 inch Color of the heat sink: Gray