It is important to clarify at the outset that “Esonic H81DA” is not a mainstream product from a major motherboard manufacturer like Gigabyte, ASUS, or MSI. Instead, it refers to a legacy, budget-oriented motherboard typically based on the Intel H81 chipset (LGA 1150 socket), often sold in pre-assembled desktop PCs or as an inexpensive replacement board in local computer markets. Consequently, writing an "essay" on its driver requires understanding the generic nature of such hardware.
SetupChipset.exe from Intel.Export-WindowsDriver -Online -Destination D:\Esonic_H81DA_Drivers
Expansion: 1 x PCI Express x16, 1 x PCI Express x1, and often 1 x M.2 NVMe slot (unusual for H81, but a key feature of this model). esonic h81da driver