is a uatx motherboard a micro atx?

Solution
The lower case "u" stands for the Greek letter Mu, and it is used as an abbreviation for "micro". It looks like our lower case Latin "u", except has a tail on it. Here it is, not sure if it will print out OK: " μ " So, yes, in your case, it stands for micro-ATX.

http://en.wikipedia.org/wiki/Mu_(letter)

mbreslin1954

Distinguished
The lower case "u" stands for the Greek letter Mu, and it is used as an abbreviation for "micro". It looks like our lower case Latin "u", except has a tail on it. Here it is, not sure if it will print out OK: " μ " So, yes, in your case, it stands for micro-ATX.

http://en.wikipedia.org/wiki/Mu_(letter)
 
Solution