Measuring in at 305 x 244 mm (12 x 9.6 inches), this size of motherboard has plenty of room for four or more RAM slots, multiple PCIe cards at several lengths, and two to four M.2 slots.

There are four motherboard sizes available in 2025 from major manufacturers such as Asus, Gigabyte, and MSI, among others. These are Mini-ITX , MicroATX , ATX , and E-ATX .

The size of the motherboard is the single biggest factor in dictating the size of the PC tower needed. Motherboards are available in four different sizes (mini-ITX, micro-ATX, ATX and e-ATX) and ...

Generally speaking, there are four different PC case sizes available. From smallest to largest, these are Mini-ITX/MicroATX (Small Form Factor), Mini Tower, Mid-Tower, and Full Tower.

With motherboard sizes influencing the overall esthetics and expansion options of a PC, choosing the best parts for a proper gaming rig that is perfectly sized yet powerful is crucial. Different ...

One TikToker recently wondered why men's jeans are categorized by two size numbers — the waist and inseam lengths — while women's have "one number that correlates to absolutely nothing." ...

We've outlined the four different motherboard sizes available in 2025, their use cases, price differences, and varying features as they stand right now.