ViewSonic XG2401, XG2701 and XG2700-4K are shipping
Viewsonic XG2700-4K Review - The 4K Freesync Monitor! - YouTube
ViewSonic - XG2700-4K 27” Ultra HD IPS gaming monitor with 1.07 billion color capability and Delta E≤2 color accuracy, HDMI 2.0, DisplayPort, MHL and FreeSync.