The Magma PCI chassis allows the connection of PCI cards to laptops or the expansion of PCI slots to desktop PCs. Two PCI slots are available for full card lengths. The third slot was glued by the manufacturer and is therefore not intended for use with PCI cards. Two 3.5 '' hard disks can be installed in the enclosure, as well as powered via the built-in power supply. This makes e.g. Sense if one of the two PCI slots is equipped with a corresponding hard disk controller. The enclosure is cooled by two built-in fans, which is located in front of the PCI cards.