Features Running Speed: Powerful Pwm Cooling Fan Supports Automatic Speed Adjustment By Motherboard Or Sensor, The Fan Will Run from 3000‑5000rpm Depending on The Internal Space Or Device Working Temperature. Sealed Motor: The Computer Pc Gpu Cpu Case Cooling Fan Features A Sealed Motor, Corrosion And Oxidation Resistant, with Overheat Protection. ABS Stainless Steel And Brass: This Computer Pc Gpu Cpu Case Cooling Fan Is Made of Abs, Stainless Steel, Brass Material with Smart Temperature Control Module, Convenient And Good to Use. 3 Gear Adjustment: Our Gpu Cpu Case Cooling Fan Uses Dc Power Supply for 6‑70vdc, 3 Gears Adjustment, Simple And Practical. Application: Cpu Cooling Fan Is Designed for Cpu Cooling, Gpu Cooling, Industrial Equipment Cooling Fan Replacement, Greenhouse, Small Grow Room, Cabinet, Server Or Welder. Specification: Item Type: Cooling Fan Material: ABS, Stainless Steel, Brass DC Power: 6-70VDC Application: Designed for CPU cooling, GPU cooling, industrial equipment cooling fan replacement, greenhouses, small grow rooms, cabinets, servers or welders. Package List: 1 x Computer CPU Case Cooling Fan 6 x Screw 8 x Nut 2 x Accessories Package List 1 x Computer CPU Case Cooling Fan 6 x Screw 8 x Nut 2 x Accessories