Equipped with 12 x 2.5' SSD or 3.5' HDD hot-swappable trays Internal backplane supports 12-port SAS / SATA drives and features 12 Gb/s Mini-SAS HD SFF-8643 connectors along with SGPIO compatibility Dual PSU support for PS2 (ATX), Mini Redundant, or 2U Redundant Triple 360mm radiator support Security lock fitted on the front removable door Support up to E-ATX or SSI-EEB motherboards Upright or horizontal placement flexibility 8 PCI expansion slots