Feature: 1. High-strength, high-toughness, thickened blades, durable, strong wind and can greatly reduce noise. 2. Made of pure copper metal, durable, resistant to falling, corrosion, oxidation, high temperature, stable performance. 3. Pure copper coil, effectively reduce the operating temperature and current of the fan, high temperature resistance, stability, low energy consumption. 4. Double ball bearing, high accuracy, long life, low noise, corrosion resistance, high and low temperature resistance, stable myocardial infarction. 5. Suitable for various occasions requiring heat dissipation, heat dissipation of the main unit, circuit board, etc. Specification: Item Type:Fan Brand:JYIO Model: P/N2123HBL Current: 0.22A Number of Blades: 5 Pcs Fan Leaf Material: PBT + Fiberglass Frame Material: Pure Copper Plated Black Nickel Product Bearing: Double Ball Product Size: 120 x 120 x 38mm / 4.72 x 4.72 x 1.5in Operating Temperature: -10 to +60 ° C Noise / DB: 32/36 Package List: 1 x Fan