Microsoft is introducing a new Windows Hello feature as part of Windows 10. While Windows Hello supports fingerprint readers to log into Windows 10, the key new feature is face recognition. Using special infrared cameras, Windows Hello will scan a face and allow you to sign into a Windows 10 machine. Regular webcams won’t work with the feature, and you’ll need a machine that ships with Intel’s new RealSense 3D camera.

There are just 10 machines that currently support Windows Hello’s facial recognition, but more are expected to ship later this year with Windows 10. If you don’t want to purchase a new machine you can buy a stand-alone RealSense camera for $99 at Intel's website. It’s designed for developers, but you’ll get all the feature of Windows Hello enabled once it’s plugged into a Windows 10 machine. Otherwise, here’s the full list of compatible machines: