The R9Q-00001 is the Microsoft Surface Pro 4 Type Cover. This fully redesigned cover is thinner and lighter than before with improved magnetic stability for laptop use. It also includes a mechanical keyboard with optimal key spacing for fast and fluid typing. This keyboard is super sturdy and features enhanced magnetic stability along the fold. Designed for the Surface, the Surface Pro 4 Type Cover easily clicks into place to go from tablet to laptop instantly and is compatible with the Surface Pro 3.