Microsoft's Surface Book 2 has more power and a new 15-inch size - The Verge
Surface Book 2 15-inch Review: Bigger is better | Mashable
Microsoft Surface Book 3: new Nvidia GPUs, up to 32GB of RAM, and faster SSDs - The Verge
Microsoft Surface Book 2 CPU upgrade seen in retailer listings - Laptop - News - HEXUS.net
Surface Book Bundle with Intel i5 Processor, 8GB Memory, 256GB SSD Hard Drive Device, Surface Pen, Windows 10 Pro, 1 Year of Office 365 Personal and Wireless Display Adapter - Sam's Club