There are four motherboard sizes available in 2025 from major manufacturers such as Asus, Gigabyte, and MSI, among others.

The typical size of an ATX motherboard is about 9.6" x 12 ... XL-ATX board in 2009 (X58 Classified 4-way SLI) while Gigabyte and MSI followed with models of their own in 2010.

Just two Micro ATX options are available for pre-order ... If your brand loyalty means you insist on a Gigabyte or MSI motherboard, your Arrow Lake platform entry prices will instead be $209 ...

M-ATX, and ITX motherboard sizes, you can also install the latest back-connector options - your ASUS BTF, GIGABYTE STEALTH, and MSI PROJECT ZERO boards. The design is also DIY and maintenance ...