What's the use of remembering QVL?

This thing must have been seen on the official website of a motherboard manufacturer. QVL is the abbreviation of quality supplier list, which means "list of qualified suppliers (products)". But the abbreviation QVL also has other uses. Such as extension ". Qvl "is used to make video formats; Product names, such as NAS network storage "Buffalo LS-QVL" and "Daikin air conditioner FHYC 125BQVL". Its tail letter indicates some functional codes of the product and so on.