The ph f120sp 120mm premium fans from phanteks is designed with the unique maelstroumlm concept technology they are specifically designed to overcome high static pressure blade deflectionand noise challenges affordable and durable the ph f120sp is a great choice for caseradiator fan upgrades the ufb bearing composed by moss and ssc systems creates a longer lifespan and adds stability to the fans silence and durability are now possible and a standard with the new ph f120sp mvb maelstroumlm v