Firmware updates for motherboards aim to fix bugs and occasionally introduce new features. However, Chinese netizen WhiteCamellia (via Uniko's Hardware) found that manufacturers often fail to promote these new features. Notably, Gigabyte has seemingly updated the 13-year-old B75M-D3H motherboard to support booting from NVMe SSDs, like M.2 SSDs, a previously unavailable functionality.
Introduced in 2012, the B75M-D3H is a motherboard featuring the B75 chipset, designed to support Intel's 2nd Generation (Sandy Bridge) and 3rd Generation (Ivy Bridge) Core processors. Clearly, the motherboard is beyond its end-of-life (EOL) status.