You now have the ability to buy a Stadia controller buy itself. Before you could only get a Stadia controller if you signed up and pre-ordered the Founders edition for $129.
But there is a catch.
ASTRO Gaming C40 TR Controller – PlayStation 4
You can only purchase the Stadia controller on its own if you already have access to Stadia through Founder’s Edition or a Buddy Pass. The Controller is going for $69.
Click here to get your controller.