(Image credit: Asus) Even though Asus is doing its very best to let us all know that this year marks the 20th anniversary of its Republic of Gamers (ROG) branding, you may well not have picked up on the fact that it's releasing all kinds of one-off goodies to celebrate two decades of high-end gaming gear. But whatever else Asus has got planned, it's not going to top this pure blast of nostalgia for me. Back then, every PC component aimed at the hardcore crowd was plastered with copper heatsinks, often in some ludicrously over-the-top form that was unnecessary, since power levels back then weren't anything like as high as they are now. To that end, Asus took its very first ROG motherboard, its latest ROG X870E Dark Hero model, and blended the two in what can only be described as a total smorgasbord of copper. Alas, it's not real copper.…