I like building compact mATX tower PCs and I also wanted to test the new Intel B series graphics cards.  At first, I wasn't aware that these new cards require resizable bar, but luckily this motherboard's last firmware update available allows for it.  I flashed the firmware to this latest version and the Intel software shows that it is configured correctly, as shown in the product's pictures.  Based on the performance for the
price, I would say Intel has the best budget performance cards out now.
This PC is installed with a used ASRock Z390 Phantom Gaming ITX/AC wifi motherboard and is installed with a used Intel i9-9900 (non K).  The CPU is paired with used 32GB (2 x 16GB) Kingston HyperX Fury DDR4 2666MHz RAM.  The NVMe M.2 SSD is 1TB and is installed with Windows 11 Professional (Activated with key, which will be provided with purchase).  There is also an extra 3TB HDD for more file storage.  The power supply is a used Corsair RM 650 (gold edition) modular power supply.  The only new components for this build are the PC case Zalman Cubix, the Arctic case fans, the ID Cooling CPU cooler, and the ASRock Intel Arc B580 graphics card.  This was a fun build for me and it is ready for its next user.