The Go also happens to be the least expensive Surface ever. When it ships in early August, it will have a base price of $399. That’s for a configuration that includes 64 gigabytes of internal storage and 4 gigabytes of RAM, and ships with Windows 10 Home in S Mode (the S stands for “streamlined,” which means you can only download apps from the Windows Store). You’ll also have to shell out extra for a Type Cover keyboard and stylus pen.