B-Mag 40mm Fan Cover
Machined out of AZ31 Magnesium to be strong and lighter than aluminum. Protects your fan blades from getting damaged while also providing additional surface area to aid in cooling of your fan with an aluminum casing. Works with most 40mm with the standard 40mm fan spacing. MAO coated to prevent corrosion while providing a slick look. Available in Black or White coatings.