egowz open chassis can support ATX and SFX type power supplies. It can support hard drives of HDD and SSD types. MATX ATX EATX type motherboards can be equipped with 2 PCIE interfaces.
matx)
JONSBO C6 Black Mini MATX Mesh Case,Simple Compact Desktop Micro ATX Chassis,Upper Cover/Side Panel Tool-Free Open pc case, ATX Power Bite (L185mm Max.),Support 75mm CPU Cooler,GPU200-255mm
Easy and quick disassembly design-Upper Cover/Side Panel Tool-free Open
MSI PRO B760M-P DDR4 ProSeries Motherboard (Supports 12th/13th Gen Intel Processors, LGA 1700, DDR4, PCIe 4.0, M.2, Gbps LAN, USB 3.2 Gen2, mATX)
Supports DDR4 Memory, Dual Channel DDR4 4800MHz (OC)