Crusader is designed to deliver maximum computing power in standard microATX form factor.??The Crusader is designed to be upgradeable. The micro ATX design means that standard size motherboards can be fitted and the detachable front panel makes servicing easy.??Crusader system maintains its cool working environment using a single fan housed in the power supply unit. An ingenious ducting system guides air efficiently through the unit cooling each component in turn. The single fan design ensures noise levels are kept to an absolute minimum (less than 27dBA). The unit supports 1 PCMCIA slot and an IEEE 1394 interface via PCMCIA super card. Expansion is also possible using low profile PCI add on cards. The Crusader Slim PC system is a beautifully designed compact PC based on a standard micro ATX motherboard. The unit is small and quiet enough for any environment. The ideal choice when space is limited.