Looking for a little more juice in your caboose?

Microsoft today started selling its most powerful versions thus far of Surface Book and Surface Pro 4, each with 1 TB of storage,  Intel Core i7 processors and 16GB of RAM.

The high-end Surface Book convertible laptop, priced at $3,199, is available online only, while the $2,699 Surface Pro 4 tablet can be bought online or in Microsoft stores in the United States and Canada.

The company also released a $60 gold Surface pen—um, in case you want to look really stylish while taking notes on your tablet.

It’s unclear whether Microsoft, with these new models, has solved some of the battery life/sleep mode issues that have plagued Surface Book since it debuted last fall. But as Mary Jo Foley points out on ZDNet, “given these are premium devices with premium price tags, they should just work.”