ASUS is one of the most well known and largest of the world's motherboard manufacturers. And of course ASUS has a wide range of products at various price points. ASUS also have another brand within the company that produces motherboards that go beyond the standard production line models. The main difference is that ASUS doesn't use a standard motherboard and make it better. ROG offerings are designed by a different team and use a different component selection. This isn't to say these are entirely original as the UEFI and a few choice things are carried over when these are deemed desirable.

ROG offerings tend to be among the very best you'll find in the industry. I wouldn't say these are entirely "no compromise," but these are about as close as it gets in the industry. ROG motherboards generally have better audio implementation, better overclocking features, better thermal solutions, and in some cases better component design and or selection. Of course this all comes at a cost. Republic of Gamers offerings are not inexpensive and in fact ROG products usually top the price charts in the respective segments.