The MasterCase 5 series was critically acclaimed for its huge range of customization options thanks to its FreeForm Modular System feature, allowing the user to tweak the case with a wealth of optional parts that could be located in numerous locations throughout the chassis. With the launch of the MasterCase Pro 6, Cooler Master are promising that many of the FreeForm accessories already on the market are compatible, and therefore any previous purchases won’t go to waste and can be slotted straight into the Pro 6.