High quality extended-ATX server tower chassis from Chenbro for professional applications. Basic chassis without power-supply or backplane. The case is suitable for operation with large server-mainboards (up to 12" x 13" / E-ATX), but can also be used with smaller standard mainboards (mini ITX, micro ATX, standard ATX). It can also be equipped with a Chenbro 4-bay backplane (3.5 inch SATA / SAS) or 6-bay mini backplane (2.5 inch SATA / SAS) (see configuration options below). Either a standard PS/2 ATX power supply or a mini-redundant ATX server power supply can be integrated into the chassis. The front-bays offer space for up to three 5 1/4 inch drives.