Not sure whether you need an ATX, micro ATX, mini ITX, or eATX board for your new PC? We've got you covered.
When you first learn how to build a PC, everything can seem super complicated, but one of the most confusing things you'll come across is motherboard sizing. Depending on the type of case you've bought for your build (and what kind of hardware you want to put in your computer in general) you can have a ton of different size options. Below I'll go through all of the main modern motherboard iterations and what they mean. Looking to learn more about gaming or PC gear? Be sure to have a look at our guides for the Best Gaming Keyboards, Best Gaming Mice, Best Gaming Headsets, and Best Gaming Controllers. Power up with unlimited access to WIRED. Get best-in-class reporting that's too important to ignore for just $2.50 $1 per month for 1 year. Includes unlimited digital access and exclusive subscriber-only content. Subscribe Today. If you buy something using links in our stories, we may earn a commission. This helps support our journalism. Learn more. What Is ATX? Ever wonder why most modern computer motherboards look the same? That's because they almost all…