“What specific motherboard is this? Manufacturer and Part Number? Why is the motherboard a PCI-E 4.0 when the GPU in the build is PCI-E 5.0 ?”

Andromeda Insights - Ultra 50 Vector - RTX 5080 16GB GDDR7 | Ryzen 7 9800X3D 4.7 GHz (5.2 GHz Turbo Boost) | 32GB DDR5 6000MHz | 2TB Gen4 SSD - Black