Expansion VGA Box for NC01U Series The Shuttle accessory XVB01 is compatible with NC01U series. It is an optional expansion VGA box. The XVB01 is equipped with AMD Radeon R7 M370 GPU and its memory capacity of 2GB. It supports Windows 7, Window 8.1, and Windows10 and supports for DirectX® 12.0 as well as 4K/Ultra HD content playback (NC01U3/U5/U7 only) with stunning 3D graphics performance for multimedia and gaming. Chipset AMD Litho XT Interface PCIe x4 Support Systems Win7/Win10 Full spec: http://global.shuttle.com/products/productsSpec?productId=2036