1. OXIDATION TREATMENT: Good quality aluminum material with surfaceoxidation treatment, wear and 2. GOOD HEAT DISSIPATION EFFECT: Adopt slotted design, bring large air area and good heat dissipation effect3. FOR CPU AND PCB: Can be used as a heat sink for PCB, ultrasonic, electronic chip, router, CPU, power board4. 120X40X20MM OVERALL SIZE: The overall size of the heat sink is 120x40x20mm, suitable for many kinds of hosts, DIY motherboards, very practical5. LONG SERVICE LIFE: Aluminum heatsink cooler come with stable structure, excellent performance and long service lifeSpecification:Item Type: Aluminum Heatsink CoolerMaterial: AluminumSurface Treatment: Anodic oxidationOverall Size: Approx. 120 x 40 x 20mm / 4.72 x 1.57 x 0.79inUses: Used as a heat sink for PCB, ultrasonic, electronic chip, router, CPU, power boardpacking list:2 x Aluminum Heatsink CoolerNote:Please match the appropriate size before use.