middle tower server chassis, supports 4 3.5 -inch hard disks, supports the motherboards of 12"*9.6" and below, compatible with ATX power and CRPS redundant power supply, support 8 PCIE full high extension slots, standard 3 standard 3 The 9025B cooling fan, the front door panel adopts a hidden air hole, has a good heat dissipation air duct, the chassis supports rack -type installation and vertical installation, and is widely used in the fields of cloud storage, cloud computing, big data, security monitoring and other fields.