The ROG Harpe Ace Mini is the cousin of the carbon fiber ROG Harpe Ace Extreme, only far less extra. It's just 2 grams heavier than the 47 gram Ace Extreme, though rather than carbon fiber it uses its minimal size to stay light and easily flingable.
Marketed toward pro FPS players, and anyone who needs absolute pinpoint accuracy in the games they play, the Harp Ace Mini uses the same immense 42,000 DPI ROG AimPoint Pro sensor, to prove without any question that your mouse isn't the thing making you miss all those headshots.