Features SURFACE OXIDATION TREATMENT --- Good quality aluminum material with surfaceoxidation treatment, wear resistant and durable GOOD HEAT DISSIPATION EFFECT --- Adopt slotted design, bring large air contact area and good heat dissipation effect FOR CPU AND PCB --- Can be used as a heat sink for PCB, ultrasonic, electronic chip, router, CPU, power board 120X40X20MM OVERALL SIZE --- The overall size of the heat sink is 120x40x20mm, suitable for many kinds of hosts, DIY motherboards, very practical LONG SERVICE LIFE --- Aluminum heatsink cooler come with stable structure, excellent performance and long service life Specification: Item Type: Aluminum Heatsink Cooler Material: Aluminum Surface Treatment: Anodic oxidation Overall Size: Approx. 120 x 40 x 20mm / 4.72 x 1.57 x 0.79in Uses: Used as a heat sink for PCB, ultrasonic, electronic chip, router, CPU, power board Package List:2 x Aluminum Heatsink Cooler Note:Please match the appropriate size before use. Package List 2 x Aluminum Heatsink Cooler