... Temperature control and fans failure function RM4024-660-BCase style4U rack mountmotherboard support12''X13" motherboard and belowPSUSingle,1+1 redundant,2 ... -height PCI or PCI-E General railoptionFront port1*power switch,1*reset,1*power indicator,1*HDD indicator,2*network indicatorScrew-lesssupportmaterialSGCC ... *178mmCarton dimensionInside:870*570*303mm ,outside :885*585*323mm 4U Rack Server Chassis