The IPC-623 is a 4U height 19" rackmount industrial computer chassis which can hold a 20-slot PCI/ISA backplane and 300 W/400 W redundant power supply. These features set it apart from the others. The IPC-623 allows installation of multiple PC systems in a single chassis. A wide variety of multi-segment ISA or ISA/PCI backplane options are available. Some come with a PCI bridge to support more PCI slots for different applications. In addition, the IPC-623 also features advanced fault resilient capability. An audible alarm is activated for power failure and fan failure or overheating which makes it an ideal solution for a number of mission-critical applications.