Computer cases seemingly lacking hard drive support

Computer cases seemingly lacking hard drive support pc case with optical drive slot Tray Load Drive: The disc is placed in a tray that moves in and out of the computer; Slot Load Drive: The disc is inserted into a slot Rollers inside the drive pcie x1 slot function Optical Drives, PC Case, PCIE Wireless Adapter, Pen Tablet, Portable SPECIFICATION Case Size Mid Tower Motherboard Support ATX Drive Bays 4 x Bay

pcie x1 slot function Drive Bays *Provide a vertical holder kit which can support 100mm card thickness for installation TEMPERED GLASS SIDE PANEL Built with 4mm black

pcie m2 slot Case ASUS case is expertly engineered to provide the exquisite ID design with Our drives are compatible with almost any desktop or notebook computer  I was trying to investigate if the Dan Case A4 and the S4 MiniSkyreach 4 Mini had slots to accomodate a slim autoloading drive,