4U 14 Slots Industrial PC Rackmount Chassis - Patented Aluminum Front Panel with Locks,Taiwan: 200281 / 190240 , China: 2L01259648.5 - Front Access USB2.0 x2 - 120mm x3 Cooling Fan - Removable Air Filter - Power and HDD LED - Power and Alarm Reset Switch - 14 Slot Butterfly Backplane The iStarUSA industrial computing chassis D-414L-7, 4U chassis with 14 slot backplane support all size standard add-on cards. D-414L-7 has exceptional thermal cooling system with hot-swappable system fans. Ideal solution for telecommunication, industrial automation, control system, and data requisition application. Additional storage with support of BPU series HDD converter cage to mange large data files and improves transfer bandwidth.