https://www.techradar.com/news/microsoft-surface-go-is-now-available-to-pre-order

Microsoft Surface Go, the affordable Windows 10 tablet, is now available to pre-order from the Microsoft Store, Amazon and other online stores.

There are two versions you can currently pre-order. There’s a Surface Go with 64GB storage, 4GB RAM and an Intel 4415Y CPU for $399/£379/AU$599.99, and one with 8GB of RAM and 128GB of storage, which can be pre-ordered for $549.99/£509.99/AU$839.99.