Asus ROG Rampage IV Extreme Black Motherboard Pictured
The Rampage IV motherboard features a more subdued appearance but is otherwise identical to the standard version.
Evidently, the standard red and black ROG Rampage IV Extreme motherboard was too flashy for some users. Consequently, Asus is currently developing a black variant that, as the name suggests, keeps the use of red to a minimum and uses shades of grey to contrast the predominately black exterior.
The Rampage IV Extreme Black is otherwise identical to the standard version, which features an Intel X79 Express Chipset, an LGA2011 socket and support for 64 GB of DDR3 memory and four-way SLI/Crossfire.
Asus has not yet provided any information on pricing or availability, but we don't expect it to cost more than a standard Rampage IV Extreme motherboard which currently retails for around $450.

The black version just has cosmetic differences. It is otherwise identical to the standard version
https://www.asus.com/Motherboards/RAMPAGE_IV_EXTREME/
This is a one off. Well, there are three.
It’s the ultimate in tech exclusivity as they will never go on sale.
While it’s NOT an official Black Edition, we’ve affectionately dubbed it the Rampage IV Extreme – Black.
If you’re lucky enough to ever visit Nvidia HQ, keep an eye out for a few there!
I think I recall reading that this one, however, is rated to last like 30 years (okay, maybe a slight exaggeration).