(Image credit: Tom's Hardware) Believe it or not, it’s been 20 years since Asus launched its high-end Republic of Gamers gaming line with the first ROG Crosshair, back in 2006 (see our recent review of the commemorative Crosshair 2006 motherboard ). And because the sub-brand has since branched out to encompass nearly every aspect of gaming hardware (and also… noodles ), Asus is celebrating this platinum milestone with, among other things, new 24K gold-plated peripherals. (Image credit: Tom's Hardware) Here we are looking at the ROG Harpe II Extreme Edition 20 wireless gaming mouse, which sports a transparent rear section with a gold metal interior surrounding an RGB 20th anniversary ROG logo (which pulses in a gold color by default).…