JONSBO N5 12+4 Drive bay NAS EATX Pc case, home server- NAS Network Storage/High Performance Computing Home/Office/Enterprise Solid wood decoration: North American black walnut veneer 12+4 Drive Bay: Supports 12x3.5 hotswap HDD disk front installation and 4x2.5 SSD which is Side installation. If full 12pcs HDD disk used,Pls have a note on the PSU condition GPU HP Host: Supports 4 GPU in the case.Pls have a note on the AIO condition Convenient installation structure:With One-piece top cover removable/easy to install the removable 4-bay HDD cage Specification- Size: W355*D403*H350mm Material: Steel plate, Al plate, wood Hard Drive 2.5 'SSD*2 or 2.5 'SSD*4/3.5 'HDD*12 Compatible MB: ITX/M-ATX/ATX/E-ATX PCI expansion slot: 8 slots Front Interface: USB3.2 Gen2 Type-C*1/USB3.0*(2IN1) PSU support: ATX170mm-240mm CPU cooler support